diff --git a/changelogs/unreleased/zj-sentry-ignore-not-found.yml b/changelogs/unreleased/zj-sentry-ignore-not-found.yml
new file mode 100644
index 0000000000000000000000000000000000000000..c7c31811df5f047ced55938ad0d42642cb18264e
--- /dev/null
+++ b/changelogs/unreleased/zj-sentry-ignore-not-found.yml
@@ -0,0 +1,5 @@
+---
+title: Ignore NotFound errors in Sentry
+merge_request: 1156
+author:
+type: changed
diff --git a/internal/middleware/sentryhandler/sentryhandler.go b/internal/middleware/sentryhandler/sentryhandler.go
index 47991a82aeac84cc0e18934f32bcdf89e61ad2bc..4cdb79af1f9404de2b09ba06234c971c90b610eb 100644
--- a/internal/middleware/sentryhandler/sentryhandler.go
+++ b/internal/middleware/sentryhandler/sentryhandler.go
@@ -16,6 +16,8 @@ import (
 var ignoredCodes = []codes.Code{
 	// OK means there was no error
 	codes.OK,
+	// NotFound means the (pool) repository was not present
+	codes.NotFound,
 	// Canceled and DeadlineExceeded indicate clients that disappeared or lost interest
 	codes.Canceled,
 	codes.DeadlineExceeded,
diff --git a/internal/middleware/sentryhandler/sentryhandler_test.go b/internal/middleware/sentryhandler/sentryhandler_test.go
index 88888acb90a8c0a473bd705b603663a705d6b189..2e5b1670f12074e7ee4212159b42189255698380 100644
--- a/internal/middleware/sentryhandler/sentryhandler_test.go
+++ b/internal/middleware/sentryhandler/sentryhandler_test.go
@@ -32,13 +32,11 @@ func Test_generateRavenPacket(t *testing.T) {
 			wantCulprit: "SSHService::SSHUploadPack",
 		},
 		{
-			name:        "GRPC error",
-			method:      "/gitaly.RepoService/RepoExists",
-			sinceStart:  500 * time.Millisecond,
-			err:         status.Errorf(codes.NotFound, "Something failed"),
-			wantCode:    codes.NotFound,
-			wantMessage: "rpc error: code = NotFound desc = Something failed",
-			wantCulprit: "RepoService::RepoExists",
+			name:       "GRPC error",
+			method:     "/gitaly.RepoService/RepoExists",
+			sinceStart: 500 * time.Millisecond,
+			err:        status.Errorf(codes.NotFound, "Something failed"),
+			wantNil:    true,
 		},
 		{
 			name:       "nil",