diff --git a/pkgs/by-name/me/mellowplayer/package.nix b/pkgs/by-name/me/mellowplayer/package.nix
deleted file mode 100644
index 89429be73733..000000000000
--- a/pkgs/by-name/me/mellowplayer/package.nix
+++ /dev/null
@@ -1,75 +0,0 @@
-{
-  stdenv,
-  cmake,
-  fetchFromGitLab,
-  lib,
-  libnotify,
-  pkg-config,
-  libsForQt5,
-}:
-
-stdenv.mkDerivation (finalAttrs: {
-  pname = "MellowPlayer";
-  version = "3.6.8";
-
-  src = fetchFromGitLab {
-    owner = "ColinDuquesnoy";
-    repo = "MellowPlayer";
-    tag = finalAttrs.version;
-    hash = "sha256-rsF2xQet7U8d4oGU/HgghvE3vvmkxjlGXPBlLD9mWTk=";
-  };
-
-  nativeBuildInputs = [
-    cmake
-    pkg-config
-    libsForQt5.wrapQtAppsHook
-  ];
-
-  buildInputs = [
-    libnotify
-    libsForQt5.qtbase
-    libsForQt5.qtdeclarative
-    libsForQt5.qtgraphicaleffects
-    libsForQt5.qtquickcontrols2
-    libsForQt5.qttools
-    libsForQt5.qtwebengine
-  ];
-
-  doCheck = true;
-
-  cmakeFlags = [ "-DBUILD_TESTS=ON" ];
-
-  preCheck = ''
-    # Running the tests requires a location at the home directory for logging.
-    export HOME="$NIX_BUILD_TOP/home"
-    mkdir -p "$HOME/.local/share/MellowPlayer.Tests/MellowPlayer.Tests/Logs"
-
-    # Without this, the tests fail because they cannot create the QT Window
-    export QT_QPA_PLATFORM=offscreen
-  ''
-  # TODO: The tests are failing because it can't locate QT plugins. Is there a better way to do this?
-  + (builtins.concatStringsSep "\n" (
-    lib.lists.flatten (
-      map (pkg: [
-        (lib.optionalString (pkg ? qtPluginPrefix) ''
-          export QT_PLUGIN_PATH="${pkg}/${pkg.qtPluginPrefix}"''${QT_PLUGIN_PATH:+':'}$QT_PLUGIN_PATH
-        '')
-
-        (lib.optionalString (pkg ? qtQmlPrefix) ''
-          export QML2_IMPORT_PATH="${pkg}/${pkg.qtQmlPrefix}"''${QML2_IMPORT_PATH:+':'}$QML2_IMPORT_PATH
-        '')
-      ]) finalAttrs.buildInputs
-    )
-  ));
-
-  meta = {
-    inherit (libsForQt5.qtbase.meta) platforms;
-    broken = stdenv.hostPlatform.isDarwin; # test build fails, but the project is not maintained anymore
-
-    description = "Cloud music integration for your desktop";
-    mainProgram = "MellowPlayer";
-    homepage = "https://gitlab.com/ColinDuquesnoy/MellowPlayer";
-    license = lib.licenses.gpl2;
-    maintainers = with lib.maintainers; [ kalbasit ];
-  };
-})
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 16d4ed6e27b0..d4b2ef19f55e 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1349,6 +1349,7 @@ mapAliases {
   mediastreamer = throw "'mediastreamer' has been moved to 'linphonePackages.mediastreamer2'"; # Added 2025-09-20
   mediastreamer-openh264 = throw "'mediastreamer-openh264' has been moved to 'linphonePackages.msopenh264'"; # Added 2025-09-20
   meilisearch_1_11 = throw "'meilisearch_1_11' has been removed, as it is no longer supported"; # Added 2025-10-03
+  mellowplayer = throw "'mellowplayer' has been removed as it was discontinued upstream in 2021."; # Added 2026-02-10
   melmatcheq.lv2 = melmatcheq-lv2; # Added 2025-09-27
   melonDS = warnAlias "'melonDS' has been renamed to 'melonds'" melonds; # Added 2026-02-08
   meshlab-unstable = throw "meshlab-unstable has been removed, as it was behind meshlab"; # Added 2025-09-21