diff --git a/packages/kbn-code-owners/src/file_code_owner.ts b/packages/kbn-code-owners/src/file_code_owner.ts
index 1f98d50c4bacc..a7812a6121d90 100644
--- a/packages/kbn-code-owners/src/file_code_owner.ts
+++ b/packages/kbn-code-owners/src/file_code_owner.ts
@@ -39,7 +39,9 @@ export function getPathsWithOwnersReversed(): PathWithOwners[] {
   const codeownersLines = codeownersContent.split(/\r?\n/);
   const codeowners = codeownersLines
     .map((line) => line.trim())
-    .filter((line) => line && line[0] !== '#');
+    .filter((line) => line && line[0] !== '#')
+    // kibanamachine is an assignment override on backport branches to avoid review requests
+    .filter((line) => line && !line.includes('@kibanamachine'));
 
   const pathsWithOwners: PathWithOwners[] = codeowners.map((c) => {
     const [path, ...ghTeams] = c.split(/\s+/);
diff --git a/packages/kbn-lint-packages-cli/migrate_plugins_to_package.ts b/packages/kbn-lint-packages-cli/migrate_plugins_to_package.ts
index 8641fa3c324d9..789729993c0bc 100644
--- a/packages/kbn-lint-packages-cli/migrate_plugins_to_package.ts
+++ b/packages/kbn-lint-packages-cli/migrate_plugins_to_package.ts
@@ -78,7 +78,8 @@ export async function migratePluginsToPackages(legacyManifests: RepoPath[]) {
       .split('\n')
       .flatMap((line) => {
         const trim = line.trim();
-        if (!trim || trim.startsWith('#')) {
+        // kibanamachine is an assignment override on backport branches to avoid review requests
+        if (!trim || trim.startsWith('#') || trim.includes('@kibanamachine')) {
           return [];
         }
 
diff --git a/src/dev/code_coverage/ingest_coverage/team_assignment/parse_owners.js b/src/dev/code_coverage/ingest_coverage/team_assignment/parse_owners.js
index c384d4f010dc3..ed027e184ef75 100644
--- a/src/dev/code_coverage/ingest_coverage/team_assignment/parse_owners.js
+++ b/src/dev/code_coverage/ingest_coverage/team_assignment/parse_owners.js
@@ -13,8 +13,9 @@ import { pipe } from '../utils';
 
 const allLines$ = (lineReader) =>
   fromEvent(lineReader, 'line').pipe(
-    filter(function dropEmptiesAndDropComments(x) {
-      return x !== '' && !/^#\s{1,3}/.test(x);
+    filter(function dropEmptiesAndDropCommentsAndDropKibanamachine(x) {
+      // kibanamachine is an assignment override on backport branches to avoid review requests
+      return x !== '' && !/^#\s{1,3}/.test(x) && !x.includes('@kibanamachine');
     }),
     map(pipe(dropCCDelim, pathAndTeams)),
     takeUntil(fromEvent(lineReader, 'close'))