diff --git a/plugins/cloudbuild/api-report.md b/plugins/cloudbuild/api-report.md
index 3fbb15000d..f8fbd9ee92 100644
--- a/plugins/cloudbuild/api-report.md
+++ b/plugins/cloudbuild/api-report.md
@@ -58,6 +58,7 @@ export const CLOUDBUILD_ANNOTATION = 'google.com/cloudbuild-project-slug';
 export type CloudbuildApi = {
   listWorkflowRuns: (options: {
     projectId: string;
+    cloudBuildFilter: string;
   }) => Promise<ActionsListWorkflowRunsForRepoResponseData>;
   getWorkflow: (options: {
     projectId: string;
@@ -94,6 +95,7 @@ export class CloudbuildClient implements CloudbuildApi {
   // (undocumented)
   listWorkflowRuns(options: {
     projectId: string;
+    cloudBuildFilter: string;
   }): Promise<ActionsListWorkflowRunsForRepoResponseData>;
   // (undocumented)
   reRunWorkflow(options: { projectId: string; runId: string }): Promise<void>;
diff --git a/plugins/cloudbuild/src/api/CloudbuildApi.ts b/plugins/cloudbuild/src/api/CloudbuildApi.ts
index cb29b49fbf..cdcfbab88d 100644
--- a/plugins/cloudbuild/src/api/CloudbuildApi.ts
+++ b/plugins/cloudbuild/src/api/CloudbuildApi.ts
@@ -29,6 +29,7 @@ export const cloudbuildApiRef = createApiRef<CloudbuildApi>({
 export type CloudbuildApi = {
   listWorkflowRuns: (options: {
     projectId: string;
+    cloudBuildFilter: string;
   }) => Promise<ActionsListWorkflowRunsForRepoResponseData>;
   getWorkflow: (options: {
     projectId: string;
diff --git a/plugins/cloudbuild/src/api/CloudbuildClient.ts b/plugins/cloudbuild/src/api/CloudbuildClient.ts
index cb6747e803..b41506f852 100644
--- a/plugins/cloudbuild/src/api/CloudbuildClient.ts
+++ b/plugins/cloudbuild/src/api/CloudbuildClient.ts
@@ -45,11 +45,12 @@ export class CloudbuildClient implements CloudbuildApi {
 
   async listWorkflowRuns(options: {
     projectId: string;
+    cloudBuildFilter: string;
   }): Promise<ActionsListWorkflowRunsForRepoResponseData> {
     const workflowRuns = await fetch(
       `https://cloudbuild.googleapis.com/v1/projects/${encodeURIComponent(
         options.projectId,
-      )}/builds`,
+      )}/builds?filter=${encodeURIComponent(options.cloudBuildFilter)}`,
       {
         headers: new Headers({
           Accept: '*/*',
diff --git a/plugins/cloudbuild/src/components/Cards/Cards.tsx b/plugins/cloudbuild/src/components/Cards/Cards.tsx
index 2b7a8607b7..cd15bae6b9 100644
--- a/plugins/cloudbuild/src/components/Cards/Cards.tsx
+++ b/plugins/cloudbuild/src/components/Cards/Cards.tsx
@@ -22,6 +22,7 @@ import { WorkflowRunStatus } from '../WorkflowRunStatus';
 import { Theme, makeStyles, LinearProgress } from '@material-ui/core';
 import ExternalLinkIcon from '@material-ui/icons/Launch';
 import { CLOUDBUILD_ANNOTATION } from '../useProjectName';
+import { getCloudbuildFilter } from '../useCloudBuildFilter';
 
 import {
   InfoCard,
@@ -79,9 +80,11 @@ export const LatestWorkflowRunCard = (props: { branch: string }) => {
   const { entity } = useEntity();
   const errorApi = useApi(errorApiRef);
   const projectId = entity?.metadata.annotations?.[CLOUDBUILD_ANNOTATION] || '';
+  const cloudBuildFilter = getCloudbuildFilter(entity);
 
   const [{ runs, loading, error }] = useWorkflowRuns({
     projectId,
+    cloudBuildFilter,
   });
   const lastRun = runs?.[0] ?? ({} as WorkflowRun);
   useEffect(() => {
diff --git a/plugins/cloudbuild/src/components/WorkflowRunsTable/WorkflowRunsTable.tsx b/plugins/cloudbuild/src/components/WorkflowRunsTable/WorkflowRunsTable.tsx
index 294847a700..210a67d0dc 100644
--- a/plugins/cloudbuild/src/components/WorkflowRunsTable/WorkflowRunsTable.tsx
+++ b/plugins/cloudbuild/src/components/WorkflowRunsTable/WorkflowRunsTable.tsx
@@ -26,6 +26,7 @@ import { buildRouteRef } from '../../routes';
 import { DateTime } from 'luxon';
 import { Table, TableColumn, Link } from '@backstage/core-components';
 import { useRouteRef } from '@backstage/core-plugin-api';
+import { getCloudbuildFilter } from '../useCloudBuildFilter';
 
 const generatedColumns: TableColumn[] = [
   {
@@ -162,9 +163,11 @@ export const WorkflowRunsTableView = ({
 export const WorkflowRunsTable = (props: { entity: Entity }) => {
   const { value: projectName, loading } = useProjectName(props.entity);
   const [projectId] = (projectName ?? '/').split('/');
+  const cloudBuildFilter = getCloudbuildFilter(props.entity);
 
   const [tableProps, { retry, setPage, setPageSize }] = useWorkflowRuns({
     projectId,
+    cloudBuildFilter,
   });
 
   return (
diff --git a/plugins/cloudbuild/src/components/useCloudBuildFilter.ts b/plugins/cloudbuild/src/components/useCloudBuildFilter.ts
new file mode 100644
index 0000000000..a71cc1e9b6
--- /dev/null
+++ b/plugins/cloudbuild/src/components/useCloudBuildFilter.ts
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2020 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Entity } from '@backstage/catalog-model';
+
+const CLOUDBUILD_FILTER_REPO_STRING = 'substitutions.REPO_NAME=';
+const CLOUDBUILD_FILTER_REPO_ANNOTATION = 'google.com/cloudbuild-repo-name';
+const CLOUDBUILD_FILTER_TRIGGER_STRING = 'substitutions.TRIGGER_NAME=';
+const CLOUDBUILD_FILTER_TRIGGER_ANNOTATION =
+  'google.com/cloudbuild-trigger-name';
+
+/** @public */
+
+export const getCloudbuildFilter = (entity: Entity) => {
+  const repoAnnotation =
+    entity?.metadata.annotations?.[CLOUDBUILD_FILTER_REPO_ANNOTATION] ?? '';
+  const triggerAnnotation =
+    entity?.metadata.annotations?.[CLOUDBUILD_FILTER_TRIGGER_ANNOTATION] ?? '';
+  if (repoAnnotation) {
+    const cloudbuildFilter = CLOUDBUILD_FILTER_REPO_STRING + repoAnnotation;
+    return cloudbuildFilter;
+  } else if (triggerAnnotation) {
+    const cloudbuildFilter =
+      CLOUDBUILD_FILTER_TRIGGER_STRING + triggerAnnotation;
+    return cloudbuildFilter;
+  }
+  const entityName = entity?.metadata.name ?? '';
+  const cloudbuildFilter = CLOUDBUILD_FILTER_REPO_STRING + entityName;
+  return cloudbuildFilter;
+};
diff --git a/plugins/cloudbuild/src/components/useWorkflowRuns.ts b/plugins/cloudbuild/src/components/useWorkflowRuns.ts
index 424f08e38d..86168018d4 100644
--- a/plugins/cloudbuild/src/components/useWorkflowRuns.ts
+++ b/plugins/cloudbuild/src/components/useWorkflowRuns.ts
@@ -33,8 +33,11 @@ export type WorkflowRun = {
   rerun: () => void;
 };
 
-export function useWorkflowRuns(options: { projectId: string }) {
-  const { projectId } = options;
+export function useWorkflowRuns(options: {
+  projectId: string;
+  cloudBuildFilter: string;
+}) {
+  const { projectId, cloudBuildFilter } = options;
   const api = useApi(cloudbuildApiRef);
   const errorApi = useApi(errorApiRef);
 
@@ -51,6 +54,7 @@ export function useWorkflowRuns(options: { projectId: string }) {
     return api
       .listWorkflowRuns({
         projectId,
+        cloudBuildFilter,
       })
       .then(
         (