diff --git a/pkgs/development/libraries/tk/8.5.nix b/pkgs/development/libraries/tk/8.5.nix
deleted file mode 100644
index 77c8a1a1f0a5..000000000000
--- a/pkgs/development/libraries/tk/8.5.nix
+++ /dev/null
@@ -1,32 +0,0 @@
-{
-  lib,
-  stdenv,
-  callPackage,
-  fetchurl,
-  fetchpatch,
-  tcl,
-  ...
-}@args:
-
-callPackage ./generic.nix (
-  args
-  // {
-
-    src = fetchurl {
-      url = "mirror://sourceforge/tcl/tk${tcl.version}-src.tar.gz";
-      sha256 = "1yhgcalldrjlc5q614rlzg1crgd3b52dhrk1pncdaxvl2vgg2yj0";
-    };
-
-    patches = lib.optionals stdenv.hostPlatform.isDarwin [
-      # Define MODULE_SCOPE before including tkPort.h
-      # https://core.tcl-lang.org/tk/info/dba9f5ce3b
-      (fetchpatch {
-        name = "module_scope.patch";
-        url = "https://core.tcl-lang.org/tk/vpatch?from=ef6c6960c53ea30c&to=9b8aa74eebed509a";
-        extraPrefix = "";
-        sha256 = "0crhf4zrzdpc1jdgyv6l6mxqgmny12r3i39y1i0j8q3pbqkd04bv";
-      })
-    ];
-
-  }
-)
diff --git a/pkgs/development/libraries/tk/generic.nix b/pkgs/development/libraries/tk/generic.nix
index 65270be3e345..8cf2f57cdb1c 100644
--- a/pkgs/development/libraries/tk/generic.nix
+++ b/pkgs/development/libraries/tk/generic.nix
@@ -105,6 +105,5 @@ tcl.mkTclDerivation {
     license = lib.licenses.tcltk;
     platforms = lib.platforms.all;
     maintainers = [ ];
-    broken = stdenv.hostPlatform.isDarwin && lib.elem (lib.versions.majorMinor tcl.version) [ "8.5" ];
   };
 }
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 150679d9bc19..2ae2df161d75 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -2450,6 +2450,7 @@ mapAliases {
   timemachine = throw "'timemachine' has been removed as it depended on the deprecated GTK 2 engine"; # Added 2026-08-13
   timescaledb = throw "'timescaledb' has been removed. Use 'postgresqlPackages.timescaledb' instead."; # Added 2025-07-19
   tinyxml2 = throw "The 'tinyxml2' alias has been removed, use 'tinyxml' for https://sourceforge.net/projects/tinyxml/ or 'tinyxml-2' for https://github.com/leethomason/tinyxml2"; # Added 2025-10-11
+  tk-8_5 = throw "'tk-8_5' has been removed, as Tk 8.5 is end-of-life and nothing needed it any more"; # Added 2026-08-22
   tkcvs = throw "'tkcvs' has been renamed to/replaced by 'tkrev'"; # Converted to throw 2025-10-27
   tkgate = throw "'tkgate' has been removed as it is unmaintained"; # Added 2025-05-17
   tkimg = throw "'tkimg' has been renamed to/replaced by 'tclPackages.tkimg'"; # Converted to throw 2025-10-27
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1d5df6224d23..530537c7a40f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6696,7 +6696,6 @@ with pkgs;
 
   tk-9_0 = callPackage ../development/libraries/tk/9.0.nix { tcl = tcl-9_0; };
   tk-8_6 = callPackage ../development/libraries/tk/8.6.nix { };
-  tk-8_5 = callPackage ../development/libraries/tk/8.5.nix { tcl = tcl-8_5; };
 
   tpm2-tss = callPackage ../development/libraries/tpm2-tss {
     autoreconfHook = buildPackages.autoreconfHook269;