diff --git a/pkgs/by-name/mo/mozart-binary/package.nix b/pkgs/by-name/mo/mozart-binary/package.nix
deleted file mode 100644
index fea17f6feb44..000000000000
--- a/pkgs/by-name/mo/mozart-binary/package.nix
+++ /dev/null
@@ -1,92 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  makeWrapper,
-  boost,
-  gmp,
-  tcl-8_5,
-  tk-8_5,
-  emacs,
-}:
-
-stdenv.mkDerivation (
-  finalAttrs:
-  let
-    binaries = {
-      x86_64-linux = fetchurl {
-        url = "mirror://sourceforge/project/mozart-oz/v${finalAttrs.version}-alpha.0/mozart2-${finalAttrs.version}-alpha.0+build.4105.5c06ced-x86_64-linux.tar.gz";
-        hash = "sha256-v0D/TlNe9tajFAWsicvjUY0/aPOV/n/z5Qt3WaPMTmc=";
-      };
-    };
-  in
-  {
-    pname = "mozart-binary";
-    version = "2.0.0";
-
-    preferLocalBuild = true;
-
-    src =
-      binaries.${stdenv.hostPlatform.system}
-        or (throw "unsupported system: ${stdenv.hostPlatform.system}");
-
-    strictDeps = true;
-    __structuredAttrs = true;
-
-    libPath = lib.makeLibraryPath [
-      stdenv.cc.cc
-      boost
-      gmp
-      tcl-8_5
-      tk-8_5
-    ];
-
-    env.TK_LIBRARY = "${tk-8_5}/lib/tk8.5";
-
-    nativeBuildInputs = [ makeWrapper ];
-
-    buildCommand = ''
-      mkdir $out
-      tar xvf $src -C $out --strip-components=1
-
-      for exe in $out/bin/{ozemulator,ozwish} ; do
-        patchelf --set-interpreter $(< $NIX_CC/nix-support/dynamic-linker) \
-                 --set-rpath $libPath \
-                 $exe
-      done
-
-      wrapProgram $out/bin/ozwish \
-        --set OZHOME $out \
-        --set TK_LIBRARY $TK_LIBRARY
-
-      wrapProgram $out/bin/ozemulator --set OZHOME $out
-
-      ${lib.optionalString (emacs != null) ''
-        wrapProgram $out/bin/oz --suffix PATH ":" ${lib.makeBinPath [ emacs ]}
-      ''}
-
-      sed -i $out/share/applications/oz.desktop \
-          -e "s,Exec=oz %u,Exec=$out/bin/oz %u,"
-
-      gzip -9n $out/share/mozart/elisp"/"*.elc
-
-      patchShebangs $out
-    '';
-
-    meta = {
-      homepage = "https://www.mozart-oz.org/";
-      description = "Multiplatform implementation of the Oz programming language";
-      longDescription = ''
-        The Mozart Programming System combines ongoing research in
-        programming language design and implementation, constraint logic
-        programming, distributed computing, and human-computer
-        interfaces. Mozart implements the Oz language and provides both
-        expressive power and advanced functionality.
-      '';
-      sourceProvenance = with lib.sourceTypes; [ binaryBytecode ];
-      license = lib.licenses.mit;
-      platforms = lib.attrNames binaries;
-      hydraPlatforms = [ ];
-    };
-  }
-)
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 07de2ecd21b7..150679d9bc19 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1693,6 +1693,7 @@ mapAliases {
   mouse-actions-gui = throw "'mouse-actions-gui' has been removed as it depended on webkitgtk 4.0 and libsoup 2.4"; # Added 2026-06-07
   move-mount-beneath = throw "move-mount-beneath has been removed, it is now superseded by util-linux's mount"; # Added 2026-05-19
   moz-phab = throw "'moz-phab' has been renamed to/replaced by 'mozphab'"; # Converted to throw 2025-10-27
+  mozart-binary = throw "'mozart-binary' has been removed, as it was an unmaintained 2018 alpha snapshot superseded by 'mozart2'"; # Added 2026-08-22
   mp3splt = throw "'mp3splt' has been removed due to lack of maintenance upstream."; # Added 2025-05-17
   mpage = throw "'mpage' has been removed due to being unmaintained and broken"; # Added 2026-05-05
   mpc-cli = throw "'mpc-cli' has been renamed to/replaced by 'mpc'"; # Converted to throw 2025-10-27