diff --git a/pkgs/by-name/ca/catfs/package.nix b/pkgs/by-name/ca/catfs/package.nix
deleted file mode 100644
index c307b68e15b7..000000000000
--- a/pkgs/by-name/ca/catfs/package.nix
+++ /dev/null
@@ -1,42 +0,0 @@
-{
-  lib,
-  rustPlatform,
-  fetchFromGitHub,
-  fuse,
-  pkg-config,
-}:
-
-rustPlatform.buildRustPackage {
-  pname = "catfs";
-  version = "0.9.0-unstable-2023-10-09";
-
-  src = fetchFromGitHub {
-    owner = "kahing";
-    repo = "catfs";
-    rev = "35430f800e68da18fb6bbd25a8f15bf32fa1f166";
-    hash = "sha256-hbv4SNe0yqjO6Oomev9uKqG29TiJeI8G7LH+Wxn7hnQ=";
-  };
-
-  cargoHash = "sha256-7MrjyIwXiHy6+rrGGpnfKF1+h1dEgUmo+IlwJlDwWbQ=";
-
-  nativeBuildInputs = [ pkg-config ];
-
-  buildInputs = [ fuse ];
-
-  # require fuse module to be active to run tests
-  # instead, run command
-  doCheck = false;
-  doInstallCheck = true;
-  installCheckPhase = ''
-    $out/bin/catfs --help > /dev/null
-  '';
-
-  meta = {
-    description = "Caching filesystem written in Rust";
-    mainProgram = "catfs";
-    homepage = "https://github.com/kahing/catfs";
-    license = lib.licenses.asl20;
-    platforms = lib.platforms.linux;
-    maintainers = [ ];
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 2fc613a12479..e1690f5858a1 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -437,6 +437,7 @@ mapAliases {
   cataract = throw "'cataract' has been removed due to a lack of maintenace"; # Added 2025-08-25
   cataract-unstable = throw "'cataract-unstable' has been removed due to a lack of maintenace"; # Added 2025-08-25
   catch = throw "catch has been removed. Please upgrade to catch2 or catch2_3"; # Added 2025-08-21
+  catfs = throw "'catfs' has been removed as it was unmaintained upstream"; # Added 2026-05-31
   catnip-gtk4 = throw "'catnip-gtk4' has been removed, as it has been unmaintained upstream since June 2023, use cavasik or cavalier instead"; # Added 2026-01-01
   cb2bib = throw "'cb2bib' has been removed as it depends on insecure&unmaintained qtwebkit"; # Added 2026-04-26
   cdktf-cli = warnAlias "'cdktf-cli' has been renamed to/replaced by 'cdktn-cli'" cdktn-cli; # Added 2026-02-18