diff --git a/lib/platform/github/__snapshots__/index.spec.ts.snap b/lib/platform/github/__snapshots__/index.spec.ts.snap
index 824f9d30b8171ceb51687d71b85a29829ada1011..62ceb6e3d44ed5f2a991c66ff6a05070c3acf501 100644
--- a/lib/platform/github/__snapshots__/index.spec.ts.snap
+++ b/lib/platform/github/__snapshots__/index.spec.ts.snap
@@ -1762,6 +1762,41 @@ Array [
 
 exports[`platform/github findPr(branchName, prTitle, state) returns true if no title and all state 1`] = `
 Array [
+  Object {
+    "graphql": Object {
+      "query": Object {
+        "repository": Object {
+          "__args": Object {
+            "name": "repo",
+            "owner": "some",
+          },
+          "defaultBranchRef": Object {
+            "name": null,
+            "target": Object {
+              "oid": null,
+            },
+          },
+          "isArchived": null,
+          "isFork": null,
+          "mergeCommitAllowed": null,
+          "nameWithOwner": null,
+          "rebaseMergeAllowed": null,
+          "squashMergeAllowed": null,
+        },
+      },
+    },
+    "headers": Object {
+      "accept": "application/vnd.github.v3+json",
+      "accept-encoding": "gzip, deflate",
+      "authorization": "token abc123",
+      "content-length": "330",
+      "content-type": "application/json",
+      "host": "api.github.com",
+      "user-agent": "https://github.com/renovatebot/renovate",
+    },
+    "method": "POST",
+    "url": "https://api.github.com/graphql",
+  },
   Object {
     "headers": Object {
       "accept": "application/vnd.github.v3+json",
@@ -1771,7 +1806,7 @@ Array [
       "user-agent": "https://github.com/renovatebot/renovate",
     },
     "method": "GET",
-    "url": "https://api.github.com/repos/undefined/pulls?per_page=100&state=all",
+    "url": "https://api.github.com/repos/some/repo/pulls?per_page=100&state=all",
   },
 ]
 `;
diff --git a/lib/platform/github/index.spec.ts b/lib/platform/github/index.spec.ts
index ea9c07c292aeee66b77b0f4baebf13360dc4a57b..2aacadf589f9123d254665e7a965654ba0a02290 100644
--- a/lib/platform/github/index.spec.ts
+++ b/lib/platform/github/index.spec.ts
@@ -1502,17 +1502,37 @@ describe('platform/github', () => {
   });
   describe('findPr(branchName, prTitle, state)', () => {
     it('returns true if no title and all state', async () => {
-      httpMock
+      const scope = httpMock
         .scope(githubApiHost)
-        .get('/repos/undefined/pulls?per_page=100&state=all')
+        .get('/repos/some/repo/pulls?per_page=100&state=all')
         .reply(200, [
+          {
+            number: 2,
+            head: {
+              ref: 'branch-a',
+              repo: { full_name: 'some/repo' },
+            },
+            title: 'branch a pr',
+            state: PrState.Open,
+            user: { login: 'not-me' },
+          },
           {
             number: 1,
-            head: { ref: 'branch-a' },
+            head: {
+              ref: 'branch-a',
+              repo: { full_name: 'some/repo' },
+            },
             title: 'branch a pr',
             state: PrState.Open,
+            user: { login: 'me' },
           },
         ]);
+      initRepoMock(scope, 'some/repo');
+      await github.initRepo({
+        repository: 'some/repo',
+        token: 'token',
+        renovateUsername: 'me',
+      } as any);
 
       const res = await github.findPr({
         branchName: 'branch-a',
diff --git a/lib/platform/github/index.ts b/lib/platform/github/index.ts
index 6bf90a67e521ff95e3ad7e08a04cd05deb7e9bd9..7ce2b2630c002b56a92455b8fc9503890a0f843e 100644
--- a/lib/platform/github/index.ts
+++ b/lib/platform/github/index.ts
@@ -50,6 +50,7 @@ import {
   GhBranchStatus,
   GhGraphQlPr,
   GhPr,
+  GhPulls,
   GhRepo,
   GhRestPr,
   LocalRepoConfig,
@@ -693,39 +694,42 @@ export async function getPrList(): Promise<Pr[]> {
   logger.trace('getPrList()');
   if (!config.prList) {
     logger.debug('Retrieving PR list');
-    let res;
+    let prList: GhPulls;
     try {
-      res = await githubApi.getJson<{
-        number: number;
-        head: { ref: string; sha: string; repo: { full_name: string } };
-        title: string;
-        state: string;
-        merged_at: string;
-        created_at: string;
-        closed_at: string;
-      }>(
-        `repos/${
-          config.parentRepo || config.repository
-        }/pulls?per_page=100&state=all`,
-        { paginate: true }
-      );
+      prList = (
+        await githubApi.getJson<GhPulls>(
+          `repos/${
+            config.parentRepo || config.repository
+          }/pulls?per_page=100&state=all`,
+          { paginate: true }
+        )
+      ).body;
     } catch (err) /* istanbul ignore next */ {
       logger.debug({ err }, 'getPrList err');
       throw new ExternalHostError(err, PLATFORM_TYPE_GITHUB);
     }
-    config.prList = res.body.map((pr) => ({
-      number: pr.number,
-      branchName: pr.head.ref,
-      sha: pr.head.sha,
-      title: pr.title,
-      state:
-        pr.state === PrState.Closed && pr.merged_at?.length
-          ? /* istanbul ignore next */ PrState.Merged
-          : pr.state,
-      createdAt: pr.created_at,
-      closed_at: pr.closed_at,
-      sourceRepo: pr.head?.repo?.full_name,
-    }));
+    config.prList = prList
+      .filter((pr) => {
+        return pr?.user?.login && config?.renovateUsername
+          ? pr.user.login === config.renovateUsername
+          : true;
+      })
+      .map(
+        (pr) =>
+          ({
+            number: pr.number,
+            branchName: pr.head.ref,
+            sha: pr.head.sha,
+            title: pr.title,
+            state:
+              pr.state === PrState.Closed && pr.merged_at?.length
+                ? /* istanbul ignore next */ PrState.Merged
+                : pr.state,
+            createdAt: pr.created_at,
+            closed_at: pr.closed_at,
+            sourceRepo: pr.head?.repo?.full_name,
+          } as never)
+      );
     logger.debug(`Retrieved ${config.prList.length} Pull Requests`);
   }
   return config.prList;
diff --git a/lib/platform/github/types.ts b/lib/platform/github/types.ts
index fe009d192385797940c86ba07228388da225a07e..f48867c89f3f515229a32e2920a1bfa25a46dcf3 100644
--- a/lib/platform/github/types.ts
+++ b/lib/platform/github/types.ts
@@ -81,3 +81,18 @@ export interface GhRepo {
     };
   };
 }
+
+export type GhPulls = {
+  number: number;
+  head: {
+    ref: string;
+    sha: string;
+    repo: { full_name: string };
+  };
+  title: string;
+  state: string;
+  merged_at: string;
+  created_at: string;
+  closed_at: string;
+  user?: { login?: string };
+}[];