diff --git a/pkgs/development/libraries/dbus-sharp-glib/dbus-sharp-glib-1.0.nix b/pkgs/development/libraries/dbus-sharp-glib/dbus-sharp-glib-1.0.nix
deleted file mode 100644
index 077c52be3735..000000000000
--- a/pkgs/development/libraries/dbus-sharp-glib/dbus-sharp-glib-1.0.nix
+++ /dev/null
@@ -1,40 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitHub,
-  autoreconfHook,
-  pkg-config,
-  mono,
-  dbus-sharp-1_0,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "dbus-sharp-glib";
-  version = "0.5";
-
-  src = fetchFromGitHub {
-    owner = "mono";
-    repo = "dbus-sharp-glib";
-
-    rev = "v${version}";
-    sha256 = "0z8ylzby8n5sar7aywc8rngd9ap5qqznadsscp5v34cacdfz1gxm";
-  };
-
-  nativeBuildInputs = [
-    pkg-config
-    autoreconfHook
-    mono # gmcs
-  ];
-  buildInputs = [
-    mono
-    dbus-sharp-1_0
-  ];
-
-  dontStrip = true;
-
-  meta = with lib; {
-    description = "D-Bus for .NET: GLib integration module";
-    platforms = platforms.linux;
-    license = licenses.mit;
-  };
-}
diff --git a/pkgs/development/libraries/dbus-sharp-glib/default.nix b/pkgs/development/libraries/dbus-sharp-glib/default.nix
deleted file mode 100644
index 538a14597b10..000000000000
--- a/pkgs/development/libraries/dbus-sharp-glib/default.nix
+++ /dev/null
@@ -1,40 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitHub,
-  pkg-config,
-  mono,
-  dbus-sharp-2_0,
-  autoreconfHook,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "dbus-sharp-glib";
-  version = "0.6";
-
-  src = fetchFromGitHub {
-    owner = "mono";
-    repo = "dbus-sharp-glib";
-
-    rev = "v${version}";
-    sha256 = "0i39kfg731as6j0hlmasgj8dyw5xsak7rl2dlimi1naphhffwzm8";
-  };
-
-  nativeBuildInputs = [
-    pkg-config
-    autoreconfHook
-    mono # gmcs
-  ];
-  buildInputs = [
-    mono
-    dbus-sharp-2_0
-  ];
-
-  dontStrip = true;
-
-  meta = with lib; {
-    description = "D-Bus for .NET: GLib integration module";
-    platforms = platforms.linux;
-    license = licenses.mit;
-  };
-}
diff --git a/pkgs/development/libraries/dbus-sharp/dbus-sharp-1.0.nix b/pkgs/development/libraries/dbus-sharp/dbus-sharp-1.0.nix
deleted file mode 100644
index e949ebb05fe5..000000000000
--- a/pkgs/development/libraries/dbus-sharp/dbus-sharp-1.0.nix
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitHub,
-  pkg-config,
-  mono,
-  autoreconfHook,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "dbus-sharp";
-  version = "0.7";
-
-  src = fetchFromGitHub {
-    owner = "mono";
-    repo = "dbus-sharp";
-
-    rev = "v${version}";
-    sha256 = "13qlqx9wqahfpzzl59157cjxprqcx2bd40w5gb2bs3vdx058p562";
-  };
-
-  nativeBuildInputs = [
-    pkg-config
-    autoreconfHook
-    mono # gmcs
-  ];
-  buildInputs = [ mono ];
-
-  dontStrip = true;
-
-  meta = with lib; {
-    description = "D-Bus for .NET";
-    platforms = platforms.linux;
-    license = licenses.mit;
-  };
-}
diff --git a/pkgs/development/libraries/dbus-sharp/default.nix b/pkgs/development/libraries/dbus-sharp/default.nix
deleted file mode 100644
index 31bb564d3a5a..000000000000
--- a/pkgs/development/libraries/dbus-sharp/default.nix
+++ /dev/null
@@ -1,39 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitHub,
-  pkg-config,
-  mono4,
-  autoreconfHook,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "dbus-sharp";
-  version = "0.8.1";
-
-  src = fetchFromGitHub {
-    owner = "mono";
-    repo = "dbus-sharp";
-
-    rev = "v${version}";
-    sha256 = "1g5lblrvkd0wnhfzp326by6n3a9mj2bj7a7646g0ziwgsxp5w6y7";
-  };
-
-  nativeBuildInputs = [
-    pkg-config
-    autoreconfHook
-    mono4 # gmcs
-  ];
-
-  # Use msbuild when https://github.com/NixOS/nixpkgs/pull/43680 is merged
-  # See: https://github.com/NixOS/nixpkgs/pull/46060
-  buildInputs = [ mono4 ];
-
-  dontStrip = true;
-
-  meta = with lib; {
-    description = "D-Bus for .NET";
-    platforms = platforms.linux;
-    license = licenses.mit;
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 87e506f06df1..c959b6fb2f88 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -723,8 +723,12 @@ mapAliases {
   daytona-bin = throw "'daytona-bin' has been removed, as it was unmaintained in nixpkgs"; # Added 2025-07-21
   dbeaver = throw "'dbeaver' has been renamed to/replaced by 'dbeaver-bin'"; # Added 2024-05-16
   dbench = throw "'dbench' has been removed as it is unmaintained for 14 years and broken"; # Added 2025-05-17
-  dclib = throw "'dclib' has been removed as it is unmaintained for 16 years and broken"; # Added 2025-05-25
   dbus-map = throw "'dbus-map' has been dropped as it is unmaintained"; # Added 2024-11-01
+  dbus-sharp-1_0 = throw "'dbus-sharp-1_0' has been removed as it was unmaintained and had no dependents"; # Added 2025-08-25
+  dbus-sharp-2_0 = throw "'dbus-sharp-2_0' has been removed as it was unmaintained and had no dependents"; # Added 2025-08-25
+  dbus-sharp-glib-1_0 = throw "'dbus-sharp-glib-1_0' has been removed as it was unmaintained and had no dependents"; # Added 2025-08-25
+  dbus-sharp-glib-2_0 = throw "'dbus-sharp-glib-2_0' has been removed as it was unmaintained and had no dependents"; # Added 2025-08-25
+  dclib = throw "'dclib' has been removed as it is unmaintained for 16 years and broken"; # Added 2025-05-25
   deadpixi-sam = deadpixi-sam-unstable;
 
   debugedit-unstable = throw "'debugedit-unstable' has been renamed to/replaced by 'debugedit'"; # Converted to throw 2024-10-17
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 04521e6c4eab..d06823d4f8df 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7518,13 +7518,6 @@ with pkgs;
   db62 = callPackage ../development/libraries/db/db-6.2.nix { };
 
   dbus = callPackage ../development/libraries/dbus { };
-  dbus-sharp-1_0 = callPackage ../development/libraries/dbus-sharp/dbus-sharp-1.0.nix { };
-  dbus-sharp-2_0 = callPackage ../development/libraries/dbus-sharp { };
-
-  dbus-sharp-glib-1_0 =
-    callPackage ../development/libraries/dbus-sharp-glib/dbus-sharp-glib-1.0.nix
-      { };
-  dbus-sharp-glib-2_0 = callPackage ../development/libraries/dbus-sharp-glib { };
 
   makeDBusConf = callPackage ../development/libraries/dbus/make-dbus-conf.nix { };