diff --git a/.changeset/red-cheetahs-invite.md b/.changeset/red-cheetahs-invite.md
new file mode 100644
index 0000000000..ef1711c761
--- /dev/null
+++ b/.changeset/red-cheetahs-invite.md
@@ -0,0 +1,6 @@
+---
+'@backstage/plugin-octopus-deploy': minor
+---
+
+Added support for Octopus Deploy spaces. The octopus.com/project-id annotation can now (optionally) be prefixed by a space identifier, for example. Spaces-1/Projects-102.
+Also note that some of this plugins exported API's have changed to accommodate this change, changing from separate arguments to a single object.
diff --git a/packages/app/package.json b/packages/app/package.json
index 74a41993d3..df626c16ba 100644
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -47,6 +47,7 @@
     "@backstage/plugin-microsoft-calendar": "workspace:^",
     "@backstage/plugin-newrelic": "workspace:^",
     "@backstage/plugin-newrelic-dashboard": "workspace:^",
+    "@backstage/plugin-octopus-deploy": "workspace:^",
     "@backstage/plugin-org": "workspace:^",
     "@backstage/plugin-pagerduty": "workspace:^",
     "@backstage/plugin-permission-react": "workspace:^",
diff --git a/packages/app/src/components/catalog/EntityPage.tsx b/packages/app/src/components/catalog/EntityPage.tsx
index d2f6fbe109..026544ab26 100644
--- a/packages/app/src/components/catalog/EntityPage.tsx
+++ b/packages/app/src/components/catalog/EntityPage.tsx
@@ -41,6 +41,10 @@ import {
   isAzureDevOpsAvailable,
   isAzurePipelinesAvailable,
 } from '@backstage/plugin-azure-devops';
+import {
+  isOctopusDeployAvailable,
+  EntityOctopusDeployContent,
+} from '@backstage/plugin-octopus-deploy';
 import { EntityBadgesDialog } from '@backstage/plugin-badges';
 import {
   EntityAboutCard,
@@ -262,6 +266,10 @@ export const cicdContent = (
       <EntityAzurePipelinesContent defaultLimit={25} />
     </EntitySwitch.Case>
 
+    <EntitySwitch.Case if={isOctopusDeployAvailable}>
+      <EntityOctopusDeployContent defaultLimit={25} />
+    </EntitySwitch.Case>
+
     <EntitySwitch.Case>
       <EmptyState
         title="No CI/CD available for this entity"
diff --git a/plugins/octopus-deploy/README.md b/plugins/octopus-deploy/README.md
index abc0559896..6039856998 100644
--- a/plugins/octopus-deploy/README.md
+++ b/plugins/octopus-deploy/README.md
@@ -42,7 +42,7 @@ const cicdContent = (
 )
 ```
 
-3. Add `octopus.com/project-id` annotation in catalog descriptor file
+3. Add `octopus.com/project-id` annotation in the catalog descriptor file.
 
 To obtain a projects ID you will have to query the Octopus API. In the future we'll add support for using a projects slug as well.
 
@@ -58,4 +58,20 @@ spec:
   type: service
 ```
 
-All set , you will be able to see the plugin in action!
+If your project is not part of the default space you can add the space ID to the annotation as a prefix. For example:
+
+```
+// catalog-info.yaml
+apiVersion: backstage.io/v1alpha1
+kind: Component
+metadata:
+  # ...
+  annotations:
+    octopus.com/project-id: Spaces-2/Projects-102
+spec:
+  type: service
+```
+
+You can get the ID of the space from the URL in the Octopus Deploy UI.
+
+All set, you will be able to see the plugin in action!
diff --git a/plugins/octopus-deploy/api-report.md b/plugins/octopus-deploy/api-report.md
index 82512ebcef..53c92403bd 100644
--- a/plugins/octopus-deploy/api-report.md
+++ b/plugins/octopus-deploy/api-report.md
@@ -25,10 +25,10 @@ export const OCTOPUS_DEPLOY_PROJECT_ID_ANNOTATION = 'octopus.com/project-id';
 // @public (undocumented)
 export interface OctopusDeployApi {
   // (undocumented)
-  getReleaseProgression(
-    projectId: string,
-    releaseHistoryCount: number,
-  ): Promise<OctopusProgression>;
+  getReleaseProgression(opts: {
+    projectReference: ProjectReference;
+    releaseHistoryCount: number;
+  }): Promise<OctopusProgression>;
 }
 
 // @public (undocumented)
@@ -42,10 +42,10 @@ export class OctopusDeployClient implements OctopusDeployApi {
     proxyPathBase?: string;
   });
   // (undocumented)
-  getReleaseProgression(
-    projectId: string,
-    releaseHistoryCount: number,
-  ): Promise<OctopusProgression>;
+  getReleaseProgression(opts: {
+    projectReference: ProjectReference;
+    releaseHistoryCount: number;
+  }): Promise<OctopusProgression>;
 }
 
 // @public (undocumented)
@@ -82,5 +82,11 @@ export type OctopusReleaseProgression = {
   };
 };
 
+// @public (undocumented)
+export type ProjectReference = {
+  projectId: string;
+  spaceId?: string;
+};
+
 // (No @packageDocumentation comment for this package)
 ```
diff --git a/plugins/octopus-deploy/src/api/index.ts b/plugins/octopus-deploy/src/api/index.ts
index 9cba49d6c0..0364bed269 100644
--- a/plugins/octopus-deploy/src/api/index.ts
+++ b/plugins/octopus-deploy/src/api/index.ts
@@ -18,6 +18,7 @@ import {
   DiscoveryApi,
   FetchApi,
 } from '@backstage/core-plugin-api';
+import { ProjectReference } from '../utils/getAnnotationFromEntity';
 
 /** @public */
 export type OctopusProgression = {
@@ -57,10 +58,10 @@ const DEFAULT_PROXY_PATH_BASE = '/octopus-deploy';
 
 /** @public */
 export interface OctopusDeployApi {
-  getReleaseProgression(
-    projectId: string,
-    releaseHistoryCount: number,
-  ): Promise<OctopusProgression>;
+  getReleaseProgression(opts: {
+    projectReference: ProjectReference;
+    releaseHistoryCount: number;
+  }): Promise<OctopusProgression>;
 }
 
 /** @public */
@@ -79,11 +80,11 @@ export class OctopusDeployClient implements OctopusDeployApi {
     this.proxyPathBase = options.proxyPathBase ?? DEFAULT_PROXY_PATH_BASE;
   }
 
-  async getReleaseProgression(
-    projectId: string,
-    releaseHistoryCount: number,
-  ): Promise<OctopusProgression> {
-    const url = await this.getApiUrl(projectId, releaseHistoryCount);
+  async getReleaseProgression(opts: {
+    projectReference: ProjectReference;
+    releaseHistoryCount: number;
+  }): Promise<OctopusProgression> {
+    const url = await this.getApiUrl(opts);
 
     const response = await this.fetchApi.fetch(url);
 
@@ -106,13 +107,24 @@ export class OctopusDeployClient implements OctopusDeployApi {
     return responseJson;
   }
 
-  private async getApiUrl(projectId: string, releaseHistoryCount: number) {
+  private async getApiUrl(opts: {
+    projectReference: ProjectReference;
+    releaseHistoryCount: number;
+  }) {
     const proxyUrl = await this.discoveryApi.getBaseUrl('proxy');
     const queryParameters = new URLSearchParams({
-      releaseHistoryCount: releaseHistoryCount.toString(),
+      releaseHistoryCount: opts.releaseHistoryCount.toString(),
     });
+    if (opts.projectReference.spaceId !== undefined) {
+      return `${proxyUrl}${this.proxyPathBase}/${encodeURIComponent(
+        opts.projectReference.spaceId,
+      )}/projects/${encodeURIComponent(
+        opts.projectReference.projectId,
+      )}/progression?${queryParameters}`;
+    }
+
     return `${proxyUrl}${this.proxyPathBase}/projects/${encodeURIComponent(
-      projectId,
+      opts.projectReference.projectId,
     )}/progression?${queryParameters}`;
   }
 }
diff --git a/plugins/octopus-deploy/src/components/EntityPageOctopusDeploy/EntityPageOctopusDeploy.tsx b/plugins/octopus-deploy/src/components/EntityPageOctopusDeploy/EntityPageOctopusDeploy.tsx
index de28edb9e0..21080cb408 100644
--- a/plugins/octopus-deploy/src/components/EntityPageOctopusDeploy/EntityPageOctopusDeploy.tsx
+++ b/plugins/octopus-deploy/src/components/EntityPageOctopusDeploy/EntityPageOctopusDeploy.tsx
@@ -15,18 +15,19 @@
  */
 import { useEntity } from '@backstage/plugin-catalog-react';
 import { useReleases } from '../../hooks/useReleases';
-import { getAnnotationFromEntity } from '../../utils/getAnnotationFromEntity';
+import { getProjectReferenceAnnotationFromEntity } from '../../utils/getAnnotationFromEntity';
 import React from 'react';
 import { ReleaseTable } from '../ReleaseTable';
 
 export const EntityPageOctopusDeploy = (props: { defaultLimit?: number }) => {
   const { entity } = useEntity();
 
-  const projectId = getAnnotationFromEntity(entity);
+  const projectReference = getProjectReferenceAnnotationFromEntity(entity);
 
   const { environments, releases, loading, error } = useReleases(
-    projectId,
+    projectReference.projectId,
     props.defaultLimit ?? 3,
+    projectReference.spaceId,
   );
 
   return (
diff --git a/plugins/octopus-deploy/src/hooks/useReleases.ts b/plugins/octopus-deploy/src/hooks/useReleases.ts
index 742ce78dca..671a0a7e7f 100644
--- a/plugins/octopus-deploy/src/hooks/useReleases.ts
+++ b/plugins/octopus-deploy/src/hooks/useReleases.ts
@@ -24,6 +24,7 @@ import {
 export function useReleases(
   projectId: string,
   releaseHistoryCount: number,
+  spaceId?: string,
 ): {
   environments?: OctopusEnvironment[];
   releases?: OctopusReleaseProgression[];
@@ -33,8 +34,11 @@ export function useReleases(
   const api = useApi(octopusDeployApiRef);
 
   const { value, loading, error } = useAsync(() => {
-    return api.getReleaseProgression(projectId, releaseHistoryCount);
-  }, [api, projectId, releaseHistoryCount]);
+    return api.getReleaseProgression({
+      projectReference: { projectId, spaceId },
+      releaseHistoryCount,
+    });
+  }, [api, projectId, spaceId, releaseHistoryCount]);
 
   return {
     environments: value?.Environments,
diff --git a/plugins/octopus-deploy/src/index.ts b/plugins/octopus-deploy/src/index.ts
index e3264efaf0..2b39431606 100644
--- a/plugins/octopus-deploy/src/index.ts
+++ b/plugins/octopus-deploy/src/index.ts
@@ -21,4 +21,6 @@ export {
 
 export * from './api';
 
+export type { ProjectReference } from './utils/getAnnotationFromEntity';
+
 export { OCTOPUS_DEPLOY_PROJECT_ID_ANNOTATION } from './constants';
diff --git a/plugins/octopus-deploy/src/utils/getAnnotationFromEntity.ts b/plugins/octopus-deploy/src/utils/getAnnotationFromEntity.ts
index e59a32235f..80ebaab76a 100644
--- a/plugins/octopus-deploy/src/utils/getAnnotationFromEntity.ts
+++ b/plugins/octopus-deploy/src/utils/getAnnotationFromEntity.ts
@@ -17,7 +17,12 @@ import { OCTOPUS_DEPLOY_PROJECT_ID_ANNOTATION } from '../constants';
 
 import { Entity } from '@backstage/catalog-model';
 
-export function getAnnotationFromEntity(entity: Entity): string {
+/** @public */
+export type ProjectReference = { projectId: string; spaceId?: string };
+
+export function getProjectReferenceAnnotationFromEntity(
+  entity: Entity,
+): ProjectReference {
   const annotation =
     entity.metadata.annotations?.[OCTOPUS_DEPLOY_PROJECT_ID_ANNOTATION];
   if (!annotation) {
@@ -26,5 +31,9 @@ export function getAnnotationFromEntity(entity: Entity): string {
     );
   }
 
-  return annotation;
+  const referencedProject = annotation.split('/', 2);
+  if (referencedProject.length === 2) {
+    return { projectId: referencedProject[1], spaceId: referencedProject[0] };
+  }
+  return { projectId: referencedProject[0] };
 }
diff --git a/yarn.lock b/yarn.lock
index 0cd30db248..b27a6f4274 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7508,7 +7508,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@backstage/plugin-octopus-deploy@workspace:plugins/octopus-deploy":
+"@backstage/plugin-octopus-deploy@workspace:^, @backstage/plugin-octopus-deploy@workspace:plugins/octopus-deploy":
   version: 0.0.0-use.local
   resolution: "@backstage/plugin-octopus-deploy@workspace:plugins/octopus-deploy"
   dependencies:
@@ -23583,6 +23583,7 @@ __metadata:
     "@backstage/plugin-microsoft-calendar": "workspace:^"
     "@backstage/plugin-newrelic": "workspace:^"
     "@backstage/plugin-newrelic-dashboard": "workspace:^"
+    "@backstage/plugin-octopus-deploy": "workspace:^"
     "@backstage/plugin-org": "workspace:^"
     "@backstage/plugin-pagerduty": "workspace:^"
     "@backstage/plugin-permission-react": "workspace:^"