diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index c9809acc781c2..c8be8ad0440cf 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -7594,11 +7594,18 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
             return typeParameterToDeclarationWithConstraint(type, context, constraintNode);
         }
 
-        function symbolToParameterDeclaration(parameterSymbol: Symbol, context: NodeBuilderContext, preserveModifierFlags?: boolean, privateSymbolVisitor?: (s: Symbol) => void, bundledImports?: boolean): ParameterDeclaration {
-            let parameterDeclaration: ParameterDeclaration | JSDocParameterTag | undefined = getDeclarationOfKind<ParameterDeclaration>(parameterSymbol, SyntaxKind.Parameter);
-            if (!parameterDeclaration && !isTransientSymbol(parameterSymbol)) {
-                parameterDeclaration = getDeclarationOfKind<JSDocParameterTag>(parameterSymbol, SyntaxKind.JSDocParameterTag);
+        function getEffectiveParameterDeclaration(parameterSymbol: Symbol): ParameterDeclaration | JSDocParameterTag | undefined {
+            const parameterDeclaration: ParameterDeclaration | JSDocParameterTag | undefined = getDeclarationOfKind<ParameterDeclaration>(parameterSymbol, SyntaxKind.Parameter);
+            if (parameterDeclaration) {
+                return parameterDeclaration;
+            }
+            if (!isTransientSymbol(parameterSymbol)) {
+                return getDeclarationOfKind<JSDocParameterTag>(parameterSymbol, SyntaxKind.JSDocParameterTag);
             }
+        }
+
+        function symbolToParameterDeclaration(parameterSymbol: Symbol, context: NodeBuilderContext, preserveModifierFlags?: boolean, privateSymbolVisitor?: (s: Symbol) => void, bundledImports?: boolean): ParameterDeclaration {
+            const parameterDeclaration = getEffectiveParameterDeclaration(parameterSymbol);
 
             let parameterType = getTypeOfSymbol(parameterSymbol);
             if (parameterDeclaration && isRequiredInitializedParameter(parameterDeclaration)) {
@@ -7609,12 +7616,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
             const modifiers = !(context.flags & NodeBuilderFlags.OmitParameterModifiers) && preserveModifierFlags && parameterDeclaration && canHaveModifiers(parameterDeclaration) ? map(getModifiers(parameterDeclaration), factory.cloneNode) : undefined;
             const isRest = parameterDeclaration && isRestParameter(parameterDeclaration) || getCheckFlags(parameterSymbol) & CheckFlags.RestParameter;
             const dotDotDotToken = isRest ? factory.createToken(SyntaxKind.DotDotDotToken) : undefined;
-            const name = parameterDeclaration ? parameterDeclaration.name ?
-                parameterDeclaration.name.kind === SyntaxKind.Identifier ? setEmitFlags(factory.cloneNode(parameterDeclaration.name), EmitFlags.NoAsciiEscaping) :
-                    parameterDeclaration.name.kind === SyntaxKind.QualifiedName ? setEmitFlags(factory.cloneNode(parameterDeclaration.name.right), EmitFlags.NoAsciiEscaping) :
-                    cloneBindingName(parameterDeclaration.name) :
-                symbolName(parameterSymbol) :
-                symbolName(parameterSymbol);
+            const name = parameterToParameterDeclarationName(parameterSymbol, parameterDeclaration, context);
             const isOptional = parameterDeclaration && isOptionalParameter(parameterDeclaration) || getCheckFlags(parameterSymbol) & CheckFlags.OptionalParameter;
             const questionToken = isOptional ? factory.createToken(SyntaxKind.QuestionToken) : undefined;
             const parameterNode = factory.createParameterDeclaration(
@@ -7627,6 +7629,15 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
             );
             context.approximateLength += symbolName(parameterSymbol).length + 3;
             return parameterNode;
+        }
+
+        function parameterToParameterDeclarationName(parameterSymbol: Symbol, parameterDeclaration: ParameterDeclaration | JSDocParameterTag | undefined, context: NodeBuilderContext) {
+            return parameterDeclaration ? parameterDeclaration.name ?
+                parameterDeclaration.name.kind === SyntaxKind.Identifier ? setEmitFlags(factory.cloneNode(parameterDeclaration.name), EmitFlags.NoAsciiEscaping) :
+                    parameterDeclaration.name.kind === SyntaxKind.QualifiedName ? setEmitFlags(factory.cloneNode(parameterDeclaration.name.right), EmitFlags.NoAsciiEscaping) :
+                    cloneBindingName(parameterDeclaration.name) :
+                symbolName(parameterSymbol) :
+                symbolName(parameterSymbol);
 
             function cloneBindingName(node: BindingName): BindingName {
                 return elideInitializerAndSetEmitFlags(node) as BindingName;
@@ -9779,6 +9790,23 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
                     if (p.flags & SymbolFlags.Accessor && useAccessors) {
                         const result: AccessorDeclaration[] = [];
                         if (p.flags & SymbolFlags.SetAccessor) {
+                            const setter = p.declarations && forEach(p.declarations, d => {
+                                if (d.kind === SyntaxKind.SetAccessor) {
+                                    return d as SetAccessorDeclaration;
+                                }
+                                if (isCallExpression(d) && isBindableObjectDefinePropertyCall(d)) {
+                                    return forEach(d.arguments[2].properties, propDecl => {
+                                        const id = getNameOfDeclaration(propDecl);
+                                        if (!!id && isIdentifier(id) && idText(id) === "set") {
+                                            return propDecl;
+                                        }
+                                    });
+                                }
+                            });
+
+                            Debug.assert(setter && isFunctionLikeDeclaration(setter));
+                            const paramSymbol: Symbol | undefined = getSignatureFromDeclaration(setter).parameters[0];
+
                             result.push(setTextRange(
                                 factory.createSetAccessorDeclaration(
                                     factory.createModifiersFromModifierFlags(flag),
@@ -9786,7 +9814,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
                                     [factory.createParameterDeclaration(
                                         /*modifiers*/ undefined,
                                         /*dotDotDotToken*/ undefined,
-                                        "arg",
+                                        paramSymbol ? parameterToParameterDeclarationName(paramSymbol, getEffectiveParameterDeclaration(paramSymbol), context) : "value",
                                         /*questionToken*/ undefined,
                                         isPrivate ? undefined : serializeTypeForDeclaration(context, getTypeOfSymbol(p), p, enclosingDeclaration, includePrivateSymbol, bundled),
                                     )],
diff --git a/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs.js b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs.js
new file mode 100644
index 0000000000000..a93409afece6f
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs.js
@@ -0,0 +1,26 @@
+//// [tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs.ts] ////
+
+//// [foo.js]
+// https://github.com/microsoft/TypeScript/issues/55391
+
+export class Foo {
+    /**
+     * Bar.
+     *
+     * @param {string} baz Baz.
+     */
+    set bar(baz) {}
+}
+
+
+
+
+//// [foo.d.ts]
+export class Foo {
+    /**
+     * Bar.
+     *
+     * @param {string} baz Baz.
+     */
+    set bar(baz: string);
+}
diff --git a/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs.symbols b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs.symbols
new file mode 100644
index 0000000000000..688aad0aba2de
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs.symbols
@@ -0,0 +1,18 @@
+//// [tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs.ts] ////
+
+=== foo.js ===
+// https://github.com/microsoft/TypeScript/issues/55391
+
+export class Foo {
+>Foo : Symbol(Foo, Decl(foo.js, 0, 0))
+
+    /**
+     * Bar.
+     *
+     * @param {string} baz Baz.
+     */
+    set bar(baz) {}
+>bar : Symbol(Foo.bar, Decl(foo.js, 2, 18))
+>baz : Symbol(baz, Decl(foo.js, 8, 12))
+}
+
diff --git a/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs.types b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs.types
new file mode 100644
index 0000000000000..be39b7f5a696e
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs.types
@@ -0,0 +1,18 @@
+//// [tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs.ts] ////
+
+=== foo.js ===
+// https://github.com/microsoft/TypeScript/issues/55391
+
+export class Foo {
+>Foo : Foo
+
+    /**
+     * Bar.
+     *
+     * @param {string} baz Baz.
+     */
+    set bar(baz) {}
+>bar : string
+>baz : string
+}
+
diff --git a/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs2.js b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs2.js
new file mode 100644
index 0000000000000..3b5084b53fb2f
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs2.js
@@ -0,0 +1,26 @@
+//// [tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs2.ts] ////
+
+//// [foo.js]
+export class Foo {
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string }} baz Baz.
+     */
+    set bar({}) {}
+}
+
+
+
+
+//// [foo.d.ts]
+export class Foo {
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string }} baz Baz.
+     */
+    set bar({}: {
+        prop: string;
+    });
+}
diff --git a/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs2.symbols b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs2.symbols
new file mode 100644
index 0000000000000..03105d80e782c
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs2.symbols
@@ -0,0 +1,15 @@
+//// [tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs2.ts] ////
+
+=== foo.js ===
+export class Foo {
+>Foo : Symbol(Foo, Decl(foo.js, 0, 0))
+
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string }} baz Baz.
+     */
+    set bar({}) {}
+>bar : Symbol(Foo.bar, Decl(foo.js, 0, 18))
+}
+
diff --git a/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs2.types b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs2.types
new file mode 100644
index 0000000000000..f362340211152
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs2.types
@@ -0,0 +1,15 @@
+//// [tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs2.ts] ////
+
+=== foo.js ===
+export class Foo {
+>Foo : Foo
+
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string }} baz Baz.
+     */
+    set bar({}) {}
+>bar : { prop: string; }
+}
+
diff --git a/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs3.js b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs3.js
new file mode 100644
index 0000000000000..385a7ea471123
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs3.js
@@ -0,0 +1,26 @@
+//// [tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs3.ts] ////
+
+//// [foo.js]
+export class Foo {
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string | undefined }} baz Baz.
+     */
+    set bar({ prop = 'foo' }) {}
+}
+
+
+
+
+//// [foo.d.ts]
+export class Foo {
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string | undefined }} baz Baz.
+     */
+    set bar({ prop }: {
+        prop: string | undefined;
+    });
+}
diff --git a/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs3.symbols b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs3.symbols
new file mode 100644
index 0000000000000..7d6a53b7d6c61
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs3.symbols
@@ -0,0 +1,16 @@
+//// [tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs3.ts] ////
+
+=== foo.js ===
+export class Foo {
+>Foo : Symbol(Foo, Decl(foo.js, 0, 0))
+
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string | undefined }} baz Baz.
+     */
+    set bar({ prop = 'foo' }) {}
+>bar : Symbol(Foo.bar, Decl(foo.js, 0, 18))
+>prop : Symbol(prop, Decl(foo.js, 6, 13))
+}
+
diff --git a/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs3.types b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs3.types
new file mode 100644
index 0000000000000..641a52e3b0b63
--- /dev/null
+++ b/tests/baselines/reference/declarationEmitClassSetAccessorParamNameInJs3.types
@@ -0,0 +1,17 @@
+//// [tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs3.ts] ////
+
+=== foo.js ===
+export class Foo {
+>Foo : Foo
+
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string | undefined }} baz Baz.
+     */
+    set bar({ prop = 'foo' }) {}
+>bar : { prop: string | undefined; }
+>prop : string
+>'foo' : "foo"
+}
+
diff --git a/tests/baselines/reference/genericSetterInClassTypeJsDoc.js b/tests/baselines/reference/genericSetterInClassTypeJsDoc.js
index 1d3546ab50df3..f1fe44969bf79 100644
--- a/tests/baselines/reference/genericSetterInClassTypeJsDoc.js
+++ b/tests/baselines/reference/genericSetterInClassTypeJsDoc.js
@@ -53,7 +53,7 @@ new Box(3).value = 3;
 declare class Box<T> {
     /** @param {T} initialValue */
     constructor(initialValue: T);
-    set value(arg: T);
+    set value(value: T);
     /** @type {T} */
     get value(): T;
     #private;
diff --git a/tests/baselines/reference/jsDeclarationsClasses.js b/tests/baselines/reference/jsDeclarationsClasses.js
index ec208cded7d48..d2df8ba6729a1 100644
--- a/tests/baselines/reference/jsDeclarationsClasses.js
+++ b/tests/baselines/reference/jsDeclarationsClasses.js
@@ -487,7 +487,7 @@ export class E<T, U> {
     /**
      * @param {string} _p
      */
-    static set s1(arg: string);
+    static set s1(_p: string);
     /**
      * @return {string}
      */
@@ -499,7 +499,7 @@ export class E<T, U> {
     /**
      * @param {string} _p
      */
-    static set s3(arg: string);
+    static set s3(_p: string);
     /**
      * @param {T} a
      * @param {U} b
@@ -518,7 +518,7 @@ export class E<T, U> {
     /**
      * @param {U} _p
      */
-    set f1(arg: U);
+    set f1(_p: U);
     /**
      * @return {U}
      */
@@ -530,7 +530,7 @@ export class E<T, U> {
     /**
      * @param {U} _p
      */
-    set f3(arg: U);
+    set f3(_p: U);
 }
 /**
  * @template T,U
diff --git a/tests/baselines/reference/jsDeclarationsFunctionLikeClasses2.js b/tests/baselines/reference/jsDeclarationsFunctionLikeClasses2.js
index 7e1a330654af8..3903dd0155c2b 100644
--- a/tests/baselines/reference/jsDeclarationsFunctionLikeClasses2.js
+++ b/tests/baselines/reference/jsDeclarationsFunctionLikeClasses2.js
@@ -189,12 +189,12 @@ export class Point2D {
     /**
      * @param {number} x
      */
-    set x(arg: number);
+    set x(x: number);
     get x(): number;
     /**
      * @param {number} y
      */
-    set y(arg: number);
+    set y(y: number);
     get y(): number;
     __proto__: typeof Vec;
 }
diff --git a/tests/baselines/reference/jsDeclarationsGetterSetter.js b/tests/baselines/reference/jsDeclarationsGetterSetter.js
index b281946bb0761..31941471c0399 100644
--- a/tests/baselines/reference/jsDeclarationsGetterSetter.js
+++ b/tests/baselines/reference/jsDeclarationsGetterSetter.js
@@ -48,6 +48,19 @@ Object.defineProperty(F.prototype, "x", {
      */
     set(_arg) {}
 });
+
+export class G {}
+Object.defineProperty(G.prototype, "x", {
+    /**
+     * @param {number[]} args
+     */
+    set(...args) {}
+});
+
+export class H {}
+Object.defineProperty(H.prototype, "x", {
+    set() {}
+});
 
 
 //// [index.js]
@@ -96,6 +109,19 @@ Object.defineProperty(F.prototype, "x", {
      */
     set(_arg) { }
 });
+export class G {
+}
+Object.defineProperty(G.prototype, "x", {
+    /**
+     * @param {number[]} args
+     */
+    set(...args) { }
+});
+export class H {
+}
+Object.defineProperty(H.prototype, "x", {
+    set() { }
+});
 
 
 //// [index.d.ts]
@@ -106,19 +132,25 @@ export class B {
     /**
      * @param {number} _arg
      */
-    set x(arg: number);
+    set x(_arg: number);
 }
 export class C {
-    set x(arg: number);
+    set x(_arg: number);
     get x(): number;
 }
 export class D {
     get x(): number;
 }
 export class E {
-    set x(arg: number);
+    set x(_arg: number);
 }
 export class F {
-    set x(arg: number);
+    set x(_arg: number);
     get x(): number;
 }
+export class G {
+    set x(args: number);
+}
+export class H {
+    set x(value: any);
+}
diff --git a/tests/baselines/reference/jsDeclarationsGetterSetter.symbols b/tests/baselines/reference/jsDeclarationsGetterSetter.symbols
index 6da563e8b5121..d0d98a8158cad 100644
--- a/tests/baselines/reference/jsDeclarationsGetterSetter.symbols
+++ b/tests/baselines/reference/jsDeclarationsGetterSetter.symbols
@@ -103,3 +103,41 @@ Object.defineProperty(F.prototype, "x", {
 
 });
 
+export class G {}
+>G : Symbol(G, Decl(index.js, 46, 3))
+
+Object.defineProperty(G.prototype, "x", {
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>G.prototype : Symbol(G.prototype)
+>G : Symbol(G, Decl(index.js, 46, 3))
+>prototype : Symbol(G.prototype)
+>"x" : Symbol(G.x, Decl(index.js, 48, 17))
+
+    /**
+     * @param {number[]} args
+     */
+    set(...args) {}
+>set : Symbol(set, Decl(index.js, 49, 41))
+>args : Symbol(args, Decl(index.js, 53, 8))
+
+});
+
+export class H {}
+>H : Symbol(H, Decl(index.js, 54, 3))
+
+Object.defineProperty(H.prototype, "x", {
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>H.prototype : Symbol(H.prototype)
+>H : Symbol(H, Decl(index.js, 54, 3))
+>prototype : Symbol(H.prototype)
+>"x" : Symbol(H.x, Decl(index.js, 56, 17))
+
+    set() {}
+>set : Symbol(set, Decl(index.js, 57, 41))
+
+});
+
diff --git a/tests/baselines/reference/jsDeclarationsGetterSetter.types b/tests/baselines/reference/jsDeclarationsGetterSetter.types
index ec7ba37a05c4f..3b4ce59488509 100644
--- a/tests/baselines/reference/jsDeclarationsGetterSetter.types
+++ b/tests/baselines/reference/jsDeclarationsGetterSetter.types
@@ -114,3 +114,45 @@ Object.defineProperty(F.prototype, "x", {
 
 });
 
+export class G {}
+>G : G
+
+Object.defineProperty(G.prototype, "x", {
+>Object.defineProperty(G.prototype, "x", {    /**     * @param {number[]} args     */    set(...args) {}}) : G
+>Object.defineProperty : <T>(o: T, p: PropertyKey, attributes: PropertyDescriptor & ThisType<any>) => T
+>Object : ObjectConstructor
+>defineProperty : <T>(o: T, p: PropertyKey, attributes: PropertyDescriptor & ThisType<any>) => T
+>G.prototype : G
+>G : typeof G
+>prototype : G
+>"x" : "x"
+>{    /**     * @param {number[]} args     */    set(...args) {}} : { set(...args: number[]): void; }
+
+    /**
+     * @param {number[]} args
+     */
+    set(...args) {}
+>set : (...args: number[]) => void
+>args : number[]
+
+});
+
+export class H {}
+>H : H
+
+Object.defineProperty(H.prototype, "x", {
+>Object.defineProperty(H.prototype, "x", {    set() {}}) : H
+>Object.defineProperty : <T>(o: T, p: PropertyKey, attributes: PropertyDescriptor & ThisType<any>) => T
+>Object : ObjectConstructor
+>defineProperty : <T>(o: T, p: PropertyKey, attributes: PropertyDescriptor & ThisType<any>) => T
+>H.prototype : H
+>H : typeof H
+>prototype : H
+>"x" : "x"
+>{    set() {}} : { set(): void; }
+
+    set() {}
+>set : () => void
+
+});
+
diff --git a/tests/baselines/reference/jsDeclarationsReusesExistingTypeAnnotations.js b/tests/baselines/reference/jsDeclarationsReusesExistingTypeAnnotations.js
index 69f6ddaf3d6a3..bcd56a2f10fd0 100644
--- a/tests/baselines/reference/jsDeclarationsReusesExistingTypeAnnotations.js
+++ b/tests/baselines/reference/jsDeclarationsReusesExistingTypeAnnotations.js
@@ -211,29 +211,29 @@ declare class С2 {
 }
 declare class С3 {
     /** @param {string=} value */
-    set p1(arg: string | undefined);
+    set p1(value: string | undefined);
     /** @type {string=} */
     get p1(): string | undefined;
     /** @param {string | undefined} value */
-    set p2(arg: string | undefined);
+    set p2(value: string | undefined);
     /** @type {string | undefined} */
     get p2(): string | undefined;
     /** @param {?string} value */
-    set p3(arg: string | null);
+    set p3(value: string | null);
     /** @type {?string} */
     get p3(): string | null;
     /** @param {string | null} value */
-    set p4(arg: string | null);
+    set p4(value: string | null);
     /** @type {string | null} */
     get p4(): string | null;
 }
 declare class С4 {
     /** @param {string=} value */
-    set p1(arg: string | undefined);
+    set p1(value: string | undefined);
     /** @param {string | undefined} value */
-    set p2(arg: string | undefined);
+    set p2(value: string | undefined);
     /** @param {?string} value */
-    set p3(arg: string | null);
+    set p3(value: string | null);
     /** @param {string | null} value */
-    set p4(arg: string | null);
+    set p4(value: string | null);
 }
diff --git a/tests/baselines/reference/jsdocAccessibilityTagsDeclarations.js b/tests/baselines/reference/jsdocAccessibilityTagsDeclarations.js
index f45d936a58b2a..c24bf1a237634 100644
--- a/tests/baselines/reference/jsdocAccessibilityTagsDeclarations.js
+++ b/tests/baselines/reference/jsdocAccessibilityTagsDeclarations.js
@@ -86,7 +86,7 @@ declare class Protected {
     /** @protected */
     protected m(): any;
     /** @protected */
-    protected set p(arg: any);
+    protected set p(value: any);
     /** @protected */
     protected get p(): any;
 }
@@ -98,7 +98,7 @@ declare class Private {
     /** @private */
     private m;
     /** @private */
-    private set p(arg);
+    private set p(value);
     /** @private */
     private get p();
 }
diff --git a/tests/baselines/reference/thisPropertyAssignmentInherited.js b/tests/baselines/reference/thisPropertyAssignmentInherited.js
index a0c3f13a9caf8..0e069571afba4 100644
--- a/tests/baselines/reference/thisPropertyAssignmentInherited.js
+++ b/tests/baselines/reference/thisPropertyAssignmentInherited.js
@@ -25,7 +25,7 @@ export class TextElement extends HTMLElement {
 
 //// [thisPropertyAssignmentInherited.d.ts]
 export class Element {
-    set textContent(arg: string);
+    set textContent(x: string);
     /**
      * @returns {String}
      */
@@ -35,7 +35,7 @@ export class Element {
 export class HTMLElement extends Element {
 }
 export class TextElement extends HTMLElement {
-    set innerHTML(arg: string);
+    set innerHTML(html: string);
     get innerHTML(): string;
     toString(): void;
 }
diff --git a/tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs.ts b/tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs.ts
new file mode 100644
index 0000000000000..c4dda7074921a
--- /dev/null
+++ b/tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs.ts
@@ -0,0 +1,16 @@
+// @declaration: true
+// @emitDeclarationOnly: true
+// @allowJs: true
+
+// @filename: foo.js
+
+// https://github.com/microsoft/TypeScript/issues/55391
+
+export class Foo {
+    /**
+     * Bar.
+     *
+     * @param {string} baz Baz.
+     */
+    set bar(baz) {}
+}
diff --git a/tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs2.ts b/tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs2.ts
new file mode 100644
index 0000000000000..1faf11483e38d
--- /dev/null
+++ b/tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs2.ts
@@ -0,0 +1,14 @@
+// @declaration: true
+// @emitDeclarationOnly: true
+// @allowJs: true
+
+// @filename: foo.js
+
+export class Foo {
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string }} baz Baz.
+     */
+    set bar({}) {}
+}
diff --git a/tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs3.ts b/tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs3.ts
new file mode 100644
index 0000000000000..e62f3908ade30
--- /dev/null
+++ b/tests/cases/compiler/declarationEmitClassSetAccessorParamNameInJs3.ts
@@ -0,0 +1,14 @@
+// @declaration: true
+// @emitDeclarationOnly: true
+// @allowJs: true
+
+// @filename: foo.js
+
+export class Foo {
+    /**
+     * Bar.
+     *
+     * @param {{ prop: string | undefined }} baz Baz.
+     */
+    set bar({ prop = 'foo' }) {}
+}
diff --git a/tests/cases/conformance/jsdoc/declarations/jsDeclarationsGetterSetter.ts b/tests/cases/conformance/jsdoc/declarations/jsDeclarationsGetterSetter.ts
index 05d6769f050ab..f42dcf64573f2 100644
--- a/tests/cases/conformance/jsdoc/declarations/jsDeclarationsGetterSetter.ts
+++ b/tests/cases/conformance/jsdoc/declarations/jsDeclarationsGetterSetter.ts
@@ -51,3 +51,16 @@ Object.defineProperty(F.prototype, "x", {
      */
     set(_arg) {}
 });
+
+export class G {}
+Object.defineProperty(G.prototype, "x", {
+    /**
+     * @param {number[]} args
+     */
+    set(...args) {}
+});
+
+export class H {}
+Object.defineProperty(H.prototype, "x", {
+    set() {}
+});