diff --git a/.changeset/remove-deprecated-signal-service-aliases.md b/.changeset/remove-deprecated-signal-service-aliases.md
new file mode 100644
index 0000000000..114f3263f0
--- /dev/null
+++ b/.changeset/remove-deprecated-signal-service-aliases.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-signals-node': minor
+---
+
+**BREAKING**: Removed the deprecated `SignalService` and `DefaultSignalService` exports. Use `SignalsService` and `DefaultSignalsService` instead.
diff --git a/plugins/signals-node/report.api.md b/plugins/signals-node/report.api.md
index a368dd2ece..29fb4ab1f1 100644
--- a/plugins/signals-node/report.api.md
+++ b/plugins/signals-node/report.api.md
@@ -7,9 +7,6 @@ import { EventsService } from '@backstage/plugin-events-node';
 import { JsonObject } from '@backstage/types';
 import { ServiceRef } from '@backstage/backend-plugin-api';
 
-// @public @deprecated (undocumented)
-export const DefaultSignalService: typeof DefaultSignalsService;
-
 // @public (undocumented)
 export class DefaultSignalsService implements SignalsService {
   // (undocumented)
@@ -33,9 +30,6 @@ export type SignalPayload<TMessage extends JsonObject = JsonObject> = {
   message: TMessage;
 };
 
-// @public @deprecated (undocumented)
-export interface SignalService extends SignalsService {}
-
 // @public @deprecated (undocumented)
 export const signalService: ServiceRef<SignalsService, 'plugin', 'singleton'>;
 
diff --git a/plugins/signals-node/src/DefaultSignalsService.ts b/plugins/signals-node/src/DefaultSignalsService.ts
index ca1412c6fa..4975f60a05 100644
--- a/plugins/signals-node/src/DefaultSignalsService.ts
+++ b/plugins/signals-node/src/DefaultSignalsService.ts
@@ -43,9 +43,3 @@ export class DefaultSignalsService implements SignalsService {
     });
   }
 }
-
-/**
- * @public
- * @deprecated Use `DefaultSignalsService` instead
- */
-export const DefaultSignalService = DefaultSignalsService;
diff --git a/plugins/signals-node/src/SignalsService.ts b/plugins/signals-node/src/SignalsService.ts
index f338ceaaad..348109b868 100644
--- a/plugins/signals-node/src/SignalsService.ts
+++ b/plugins/signals-node/src/SignalsService.ts
@@ -26,9 +26,3 @@ export interface SignalsService {
     signal: SignalPayload<TMessage>,
   ): Promise<void>;
 }
-
-/**
- * @public
- * @deprecated Use `SignalsService` instead
- */
-export interface SignalService extends SignalsService {}