diff --git a/pkgs/applications/networking/p2p/soulseekqt/default.nix b/pkgs/applications/networking/p2p/soulseekqt/default.nix
deleted file mode 100644
index 2a7a3bb37e6a..000000000000
--- a/pkgs/applications/networking/p2p/soulseekqt/default.nix
+++ /dev/null
@@ -1,68 +0,0 @@
-{
-  stdenv,
-  lib,
-  fetchzip,
-  mkDerivation,
-  appimageTools,
-  autoPatchelfHook,
-  desktop-file-utils,
-  imagemagick,
-  qtmultimedia,
-}:
-
-mkDerivation rec {
-  pname = "soulseekqt";
-  version = "2018-1-30";
-
-  src = fetchzip {
-    url = "https://www.slsknet.org/SoulseekQt/Linux/SoulseekQt-${version}-64bit-appimage.tgz";
-    sha256 = "16ncnvv8h33f161mgy7qc0wjvvqahsbwvby65qhgfh9pbbgb4xgg";
-  };
-
-  appextracted = appimageTools.extractType2 {
-    inherit pname version;
-    src = "${src}/SoulseekQt-2018-1-30-64bit.AppImage";
-  };
-
-  dontBuild = true;
-  dontConfigure = true;
-
-  nativeBuildInputs = [
-    imagemagick
-    autoPatchelfHook
-    desktop-file-utils
-  ];
-  buildInputs = [
-    qtmultimedia
-    stdenv.cc.cc
-  ];
-
-  installPhase = ''
-    binary="$(realpath ${appextracted}/AppRun)"
-    install -Dm755 $binary -t $out/bin
-
-    # fixup and install desktop file
-    desktop-file-install --dir $out/share/applications \
-      --set-key Exec --set-value SoulseekQt \
-      --set-key Terminal --set-value false \
-      --set-key Comment --set-value "${meta.description}" \
-      --set-key Categories --set-value Network ${appextracted}/default.desktop
-    mv $out/share/applications/default.desktop $out/share/applications/SoulseekQt.desktop
-    #TODO: write generic code to read icon path from $binary.desktop
-    icon="$(realpath ${appextracted}/.DirIcon)"
-    for size in 16 32 48 64 72 96 128 192 256 512 1024; do
-      mkdir -p $out/share/icons/hicolor/"$size"x"$size"/apps
-      convert -resize "$size"x"$size" $icon $out/share/icons/hicolor/"$size"x"$size"/apps/$(basename $icon)
-    done
-  '';
-
-  meta = with lib; {
-    description = "Official Qt SoulSeek client";
-    homepage = "https://www.slsknet.org";
-    mainProgram = "SoulseekQt";
-    sourceProvenance = with sourceTypes; [ binaryNativeCode ];
-    license = licenses.unfree;
-    maintainers = [ ];
-    platforms = [ "x86_64-linux" ];
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 854b88879f8c..e6767dd00258 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1769,6 +1769,7 @@ mapAliases {
   snapTools = throw "snapTools was removed because makeSnap produced broken snaps and it was the only function in snapTools. See https://github.com/NixOS/nixpkgs/issues/100618 for more details."; # 2024-03-04;
   snort2 = throw "snort2 has been removed as it is deprecated and unmaintained by upstream. Consider using snort (snort3) package instead."; # 2025-05-21
   soldat-unstable = opensoldat; # Added 2022-07-02
+  soulseekqt = throw "'soulseekqt' has been removed due to lack of maintenance in Nixpkgs in a long time. Consider using 'nicotine-plus' or 'slskd' instead."; # Added 2025-06-07
   soundOfSorting = sound-of-sorting; # Added 2023-07-07
   SP800-90B_EntropyAssessment = sp800-90b-entropyassessment; # Added on 2024-06-12
   SPAdes = spades; # Added 2024-06-12
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 57780cdf596c..c4c22adf0c47 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -13997,8 +13997,6 @@ with pkgs;
 
   sonic-visualiser = libsForQt5.callPackage ../applications/audio/sonic-visualiser { };
 
-  soulseekqt = libsForQt5.callPackage ../applications/networking/p2p/soulseekqt { };
-
   spek = callPackage ../applications/audio/spek {
     autoreconfHook = buildPackages.autoreconfHook269;
   };