diff --git a/src/vs/vscode.proposed.d.ts b/src/vs/vscode.proposed.d.ts
index 7015e3d1d5e798d7d0acb7c8114885d63928018d..fe340e53c7f7556efa9502150fec0cbcc7490771 100644
--- a/src/vs/vscode.proposed.d.ts
+++ b/src/vs/vscode.proposed.d.ts
@@ -852,6 +852,14 @@ declare module 'vscode' {
 		debugAdapterExecutable?(folder: WorkspaceFolder | undefined, token?: CancellationToken): ProviderResult<DebugAdapterExecutable>;
 	}
 
+	export interface DebugSession {
+
+		/**
+		 * Terminates the session.
+		 */
+		terminate(): Thenable<void>;
+	}
+
 	//#endregion
 
 	//#region LogLevel: https://github.com/microsoft/vscode/issues/85992
diff --git a/src/vs/workbench/api/browser/mainThreadDebugService.ts b/src/vs/workbench/api/browser/mainThreadDebugService.ts
index 1ddadf87184a0dfea49727db1c80dfe92778ded4..9011d0cf0d7cc4b071abf63263658285c448cec5 100644
--- a/src/vs/workbench/api/browser/mainThreadDebugService.ts
+++ b/src/vs/workbench/api/browser/mainThreadDebugService.ts
@@ -262,6 +262,14 @@ export class MainThreadDebugService implements MainThreadDebugServiceShape, IDeb
 		return Promise.reject(new Error('debug session not found'));
 	}
 
+	public $terminateDebugSession(sessionId: DebugSessionUUID): Promise<void> {
+		const session = this.debugService.getModel().getSession(sessionId, true);
+		if (session) {
+			return session.terminate();
+		}
+		return Promise.reject(new Error('debug session not found'));
+	}
+
 	public $appendDebugConsole(value: string): void {
 		// Use warning as severity to get the orange color for messages coming from the debug extension
 		const session = this.debugService.getViewModel().focusedSession;
diff --git a/src/vs/workbench/api/common/extHost.protocol.ts b/src/vs/workbench/api/common/extHost.protocol.ts
index 6d21b5a745deab4ca182b66ce4950d77efb452fd..b320db71bc07fe9049ecd1bc288edfb1abf24e4d 100644
--- a/src/vs/workbench/api/common/extHost.protocol.ts
+++ b/src/vs/workbench/api/common/extHost.protocol.ts
@@ -873,6 +873,7 @@ export interface MainThreadDebugServiceShape extends IDisposable {
 	$startDebugging(folder: UriComponents | undefined, nameOrConfig: string | IDebugConfiguration, options: IStartDebuggingOptions): Promise<boolean>;
 	$setDebugSessionName(id: DebugSessionUUID, name: string): void;
 	$customDebugAdapterRequest(id: DebugSessionUUID, command: string, args: any): Promise<any>;
+	$terminateDebugSession(id: DebugSessionUUID): Promise<void>;
 	$appendDebugConsole(value: string): void;
 	$startBreakpointEvents(): void;
 	$registerBreakpoints(breakpoints: Array<ISourceMultiBreakpointDto | IFunctionBreakpointDto | IDataBreakpointDto>): Promise<void>;
diff --git a/src/vs/workbench/api/common/extHostDebugService.ts b/src/vs/workbench/api/common/extHostDebugService.ts
index 6fc0dc2bdc1c120f2554c0fd0e6a69410613a3e9..167ab16048085b76c1ca04c0ab0db67490e4730a 100644
--- a/src/vs/workbench/api/common/extHostDebugService.ts
+++ b/src/vs/workbench/api/common/extHostDebugService.ts
@@ -952,6 +952,10 @@ export class ExtHostDebugSession implements vscode.DebugSession {
 	public customRequest(command: string, args: any): Promise<any> {
 		return this._debugServiceProxy.$customDebugAdapterRequest(this._id, command, args);
 	}
+
+	public terminate(): Promise<void> {
+		return this._debugServiceProxy.$terminateDebugSession(this._id);
+	}
 }
 
 export class ExtHostDebugConsole implements vscode.DebugConsole {