diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index 08b8f7d47e7f..0411e4d3ed21 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -5052,42 +5052,6 @@ let
 
       vadimcn.vscode-lldb = callPackage ./vadimcn.vscode-lldb { };
 
-      valentjn.vscode-ltex = vscode-utils.buildVscodeMarketplaceExtension rec {
-        mktplcRef = {
-          name = "vscode-ltex";
-          publisher = "valentjn";
-          version = "13.1.0";
-        };
-
-        vsix = fetchurl {
-          name = "${mktplcRef.publisher}-${mktplcRef.name}.vsix";
-          url = "https://github.com/valentjn/vscode-ltex/releases/download/${mktplcRef.version}/vscode-ltex-${mktplcRef.version}-offline-linux-x64.vsix";
-          sha256 = "1nlrijjwc35n1xgb5lgnr4yvlgfcxd0vdj93ip8lv2xi8x1ni5f6";
-        };
-
-        nativeBuildInputs = [
-          jq
-          moreutils
-        ];
-
-        buildInputs = [ jdk ];
-
-        postInstall = ''
-          cd "$out/$installPrefix"
-          jq '.contributes.configuration.properties."ltex.java.path".default = "${jdk}"' package.json | sponge package.json
-
-          # drop the bundled JDK (unpatched, stale CA keystore); ltex-ls runs on jdk
-          rm -r lib/ltex-ls-*/jdk-*
-          substituteInPlace lib/ltex-ls-*/bin/ltex-ls lib/ltex-ls-*/bin/ltex-cli \
-            --replace-fail '"$BASEDIR"/jdk-11.0.12+7' '${jdk}'
-        '';
-
-        meta = {
-          license = lib.licenses.mpl20;
-          maintainers = [ ];
-        };
-      };
-
       viktorqvarfordt.vscode-pitch-black-theme = buildVscodeMarketplaceExtension {
         mktplcRef = {
           name = "vscode-pitch-black-theme";
@@ -5711,6 +5675,7 @@ let
     ms-vscode.theme-tomorrowkit = throw "ms-vscode.theme-tomorrowkit is deprecated"; # Added 2025-08-30
     richie5um2.snake-trail = throw "richie5um2.snake-trail is deprecated"; # Added 2025-09-04
     rioj7.commandOnAllFiles = throw "rioj7.commandOnAllFiles is deprecated in favor of rioj7.commandonallfiles"; # Added 2024-05-29
+    valentjn.vscode-ltex = throw "'valentjn.vscode-ltex' has been removed from the VSCode marketplace. Consider using 'ltex-plus.vscode-ltex-plus' instead"; # Added 2026-10-28
     WakaTime.vscode-wakatime = throw "WakaTime.vscode-wakatime is deprecated in favor of wakatime.vscode-wakatime"; # Added 2024-05-29
   };
 
diff --git a/pkgs/by-name/lt/ltex-ls/package.nix b/pkgs/by-name/lt/ltex-ls/package.nix
deleted file mode 100644
index 73c6f9e6e83b..000000000000
--- a/pkgs/by-name/lt/ltex-ls/package.nix
+++ /dev/null
@@ -1,41 +0,0 @@
-{
-  lib,
-  stdenvNoCC,
-  fetchurl,
-  makeBinaryWrapper,
-  jre_headless,
-}:
-
-stdenvNoCC.mkDerivation rec {
-  pname = "ltex-ls";
-  version = "16.0.0";
-
-  src = fetchurl {
-    url = "https://github.com/valentjn/ltex-ls/releases/download/${version}/ltex-ls-${version}.tar.gz";
-    sha256 = "sha256-lW1TfTckqhCmhjcvduISY9qAdKPM/0cobxbIrCq5JkQ=";
-  };
-
-  nativeBuildInputs = [ makeBinaryWrapper ];
-
-  installPhase = ''
-    runHook preInstall
-
-    mkdir -p $out
-    cp -rfv bin/ lib/ $out
-    rm -fv $out/bin/.lsp-cli.json $out/bin/*.bat
-    for file in $out/bin/{ltex-ls,ltex-cli}; do
-      wrapProgram $file --set JAVA_HOME "${jre_headless}"
-    done
-
-    runHook postInstall
-  '';
-
-  meta = {
-    homepage = "https://valentjn.github.io/ltex/";
-    description = "LSP language server for LanguageTool";
-    license = lib.licenses.mpl20;
-    mainProgram = "ltex-ls";
-    maintainers = with lib.maintainers; [ vinnymeller ];
-    platforms = jre_headless.meta.platforms;
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 6c02614a53c3..0413cd40ce6a 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1706,6 +1706,7 @@ mapAliases {
   lounge-gtk-theme = throw "'lounge-gtk-theme' has been removed because it depended on 'gtk-engine-murrine', which was removed because it was unmaintained upstream and depended on GTK 2."; # Added 2026-07-22
   lowPrio = warnAlias "'lowPrio' has been removed from pkgs, use `lib.lowPrio` instead" lib.lowPrio; # Added 2025-10-30
   LPCNet = throw "'LPCNet' has been renamed to/replaced by 'lpcnet'"; # Converted to throw 2025-10-27
+  ltex-ls = throw "'ltex-ls' has been removed because it was archived upstream on 2026-04-12. Consider using 'ltex-ls-plus' instead"; # Added 2026-10-28
   lttv = throw "'lttv' has been removed, as it is broken and unmaintained. Upstream suggests using 'tracecompass' or 'babeltrace2' instead"; # Added 2026-05-04
   luci-go = throw "luci-go has been removed since it was unused and failing to build for 5 months"; # Added 2025-08-27
   lukesmithx-st = throw "'lukesmithxyz-st' has been removed, as it is unmaintained"; # Added 2026-08-31