diff --git a/pkgs/by-name/co/copilot-cli/package.nix b/pkgs/by-name/co/copilot-cli/package.nix
deleted file mode 100644
index 22a3bdff9bb1..000000000000
--- a/pkgs/by-name/co/copilot-cli/package.nix
+++ /dev/null
@@ -1,57 +0,0 @@
-{
-  lib,
-  stdenv,
-  buildGoModule,
-  fetchFromGitHub,
-  installShellFiles,
-  testers,
-  copilot-cli,
-}:
-
-buildGoModule (finalAttrs: {
-  pname = "copilot-cli";
-  version = "1.34.1";
-
-  src = fetchFromGitHub {
-    owner = "aws";
-    repo = "copilot-cli";
-    rev = "v${finalAttrs.version}";
-    hash = "sha256-Oxt1+0z+woNPsFuCkj4t71/e21mHtoCd281BwbHCGc8=";
-  };
-
-  vendorHash = "sha256-ZdYuQAdjzvxxqKHoiHfhfJff3OfEE7ciIGcX1W3jVXY=";
-
-  nativeBuildInputs = [ installShellFiles ];
-
-  # follow LINKER_FLAGS in Makefile
-  ldflags = [
-    "-s"
-    "-w"
-    "-X github.com/aws/copilot-cli/internal/pkg/version.Version=v${finalAttrs.version}"
-    "-X github.com/aws/copilot-cli/internal/pkg/cli.binaryS3BucketPath=https://ecs-cli-v2-release.s3.amazonaws.com"
-  ];
-
-  subPackages = [ "./cmd/copilot" ];
-
-  postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
-    installShellCompletion --cmd copilot \
-      --bash <($out/bin/copilot completion bash) \
-      --fish <($out/bin/copilot completion fish) \
-      --zsh <($out/bin/copilot completion zsh)
-  '';
-
-  passthru.tests.version = testers.testVersion {
-    package = copilot-cli;
-    command = "copilot version";
-    version = "v${finalAttrs.version}";
-  };
-
-  meta = {
-    description = "Build, Release and Operate Containerized Applications on AWS";
-    homepage = "https://github.com/aws/copilot-cli";
-    changelog = "https://github.com/aws/copilot-cli/releases/tag/v${finalAttrs.version}";
-    license = lib.licenses.asl20;
-    maintainers = with lib.maintainers; [ jiegec ];
-    mainProgram = "copilot";
-  };
-})
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index c09af1ec3ca1..c94f1eb11bd1 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -541,6 +541,7 @@ mapAliases {
   conduwuit = throw "'conduwuit' has been removed as the upstream repository has been deleted. Consider migrating to 'matrix-conduit', 'matrix-continuwuity' or 'matrix-tuwunel' instead."; # Added 2025-08-08
   cone = throw "cone has been removed, as it does not build with supported LLVM versions"; # Added 2025-08-10
   connman-ncurses = throw "'connman-ncurses' has been removed due to lack of maintenance upstream."; # Added 2025-05-27
+  copilot-cli = throw "'copilot-cli' was removed due to upstream end-of-life."; # Added 2026-05-11
   copilot-language-server-fhs = warnAlias "The package set `copilot-language-server-fhs` has been renamed to `copilot-language-server`." copilot-language-server; # Added 2025-09-07
   copper = throw "'copper' has been removed, as it was broken since 22.11"; # Added 2025-08-22
   cordless = throw "'cordless' has been removed due to being archived upstream. Consider using 'discordo' instead."; # Added 2025-06-07