diff --git a/pkgs/applications/misc/plasma-theme-switcher/default.nix b/pkgs/applications/misc/plasma-theme-switcher/default.nix
deleted file mode 100644
index 324cca93099f..000000000000
--- a/pkgs/applications/misc/plasma-theme-switcher/default.nix
+++ /dev/null
@@ -1,49 +0,0 @@
-{
-  stdenv,
-  lib,
-  cmake,
-  extra-cmake-modules,
-  fetchFromGitHub,
-  qtbase,
-  kdeFrameworks,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "plasma-theme-switcher";
-  version = "0.1";
-  dontWrapQtApps = true;
-
-  src = fetchFromGitHub {
-    owner = "maldoinc";
-    repo = "plasma-theme-switcher";
-    rev = "v${version}";
-    sha256 = "sdcJ6K5QmglJEDIEl4sd8x7DuCPCqMHRxdYbcToM46Q=";
-  };
-
-  buildInputs = [
-    qtbase
-    kdeFrameworks.plasma-framework
-  ];
-
-  nativeBuildInputs = [
-    cmake
-    extra-cmake-modules
-  ];
-
-  installPhase = ''
-    runHook preInstall
-
-    mkdir -p $out/bin
-    cp plasma-theme $out/bin
-
-    runHook postInstall
-  '';
-
-  meta = with lib; {
-    homepage = "https://github.com/maldoinc/plasma-theme-switcher/";
-    description = "KDE Plasma theme switcher";
-    license = with licenses; [ gpl2Only ];
-    maintainers = with maintainers; [ kevink ];
-    mainProgram = "plasma-theme";
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 2e442e625a5a..ef67b6f9b243 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1687,6 +1687,7 @@ mapAliases {
 
   plasma-applet-volumewin7mixer = throw "'plasma-applet-volumewin7mixer' has been removed, as it is only compatible with Plasma 5, which is EOL"; # Added 2025-08-20
   plasma-pass = throw "'plasma-pass' has been removed, as it is only compatible with Plasma 5, which is EOL"; # Added 2025-08-20
+  plasma-theme-switcher = throw "'plasma-theme-switcher' has been removed, as it is only compatible with Plasma 5, which is EOL"; # Added 2025-08-20
   PlistCpp = plistcpp; # Added 2024-01-05
   pocket-updater-utility = pupdate; # Added 2024-01-25
   polipo = throw "'polipo' has been removed as it is unmaintained upstream"; # Added 2025-05-18
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index cc400a75ea13..372f34fb8282 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -14687,8 +14687,6 @@ with pkgs;
 
   xfce = recurseIntoAttrs (callPackage ../desktops/xfce { });
 
-  plasma-theme-switcher = libsForQt5.callPackage ../applications/misc/plasma-theme-switcher { };
-
   inherit
     (callPackages ../applications/misc/redshift {
       inherit (python3Packages)