diff --git a/doc/release-notes/rl-2505.section.md b/doc/release-notes/rl-2505.section.md
index c7ec7814360b..3d30d2b5b4b2 100644
--- a/doc/release-notes/rl-2505.section.md
+++ b/doc/release-notes/rl-2505.section.md
@@ -161,6 +161,8 @@
 
 - The `haka` package and module has been removed because the package was broken and unmaintained for 9 years.
 
+- The `gsignond` package, plugins and module have been removed because they were unmaintained for 6 years.
+
 - `strawberry` has been updated to 1.2, which drops support for the VLC backend and Qt 5. The `strawberry-qt5` package
   and `withGstreamer`/`withVlc` override options have been removed due to this.
 
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 1f1317ddcdfe..8ecdc692ef5d 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -554,7 +554,6 @@
   ./services/desktops/gnome/rygel.nix
   ./services/desktops/gnome/sushi.nix
   ./services/desktops/gnome/tinysparql.nix
-  ./services/desktops/gsignond.nix
   ./services/desktops/gvfs.nix
   ./services/desktops/malcontent.nix
   ./services/desktops/neard.nix
diff --git a/nixos/modules/rename.nix b/nixos/modules/rename.nix
index 0e8711fd489a..94cf7428e09d 100644
--- a/nixos/modules/rename.nix
+++ b/nixos/modules/rename.nix
@@ -299,6 +299,9 @@ in
       See https://www.isc.org/blogs/isc-dhcp-eol/ for details.
       Please switch to a different implementation like kea or dnsmasq.
     '')
+    (mkRemovedOptionModule [ "services" "gsignond" ] ''
+      The corresponding package was unmaintained, abandoned upstream, used outdated library and thus removed from nixpkgs.
+    '')
     (mkRemovedOptionModule [ "services" "haka" ] ''
       The corresponding package was broken and removed from nixpkgs.
     '')
diff --git a/nixos/modules/services/desktops/gsignond.nix b/nixos/modules/services/desktops/gsignond.nix
deleted file mode 100644
index 96a54889babf..000000000000
--- a/nixos/modules/services/desktops/gsignond.nix
+++ /dev/null
@@ -1,46 +0,0 @@
-# Accounts-SSO gSignOn daemon
-{
-  config,
-  lib,
-  pkgs,
-  ...
-}:
-let
-  package = pkgs.gsignond.override { plugins = config.services.gsignond.plugins; };
-in
-{
-
-  meta.maintainers = [ ];
-
-  ###### interface
-
-  options = {
-
-    services.gsignond = {
-
-      enable = lib.mkOption {
-        type = lib.types.bool;
-        default = false;
-        description = ''
-          Whether to enable gSignOn daemon, a DBus service
-          which performs user authentication on behalf of its clients.
-        '';
-      };
-
-      plugins = lib.mkOption {
-        type = lib.types.listOf lib.types.package;
-        default = [ ];
-        description = ''
-          What plugins to use with the gSignOn daemon.
-        '';
-      };
-    };
-  };
-
-  ###### implementation
-  config = lib.mkIf config.services.gsignond.enable {
-    environment.etc."gsignond.conf".source = "${package}/etc/gsignond.conf";
-    services.dbus.packages = [ package ];
-  };
-
-}
diff --git a/pkgs/development/libraries/gsignond/conf.patch b/pkgs/development/libraries/gsignond/conf.patch
deleted file mode 100644
index 0aa2034e3996..000000000000
--- a/pkgs/development/libraries/gsignond/conf.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff --git a/meson.build b/meson.build
-index cb1e0df..d90c85c 100644
---- a/meson.build
-+++ b/meson.build
-@@ -95,6 +95,6 @@ endif
- configure_file(
-     input: 'gsignond.conf.in',
-     configuration: conf_data,
--    install_dir: sysconf_dir,
-+    install_dir: 'etc/',
-     output: 'gsignond.conf'
- )
diff --git a/pkgs/development/libraries/gsignond/default.nix b/pkgs/development/libraries/gsignond/default.nix
deleted file mode 100644
index f3f992ea8dac..000000000000
--- a/pkgs/development/libraries/gsignond/default.nix
+++ /dev/null
@@ -1,93 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitLab,
-  pkg-config,
-  meson,
-  ninja,
-  glib,
-  glib-networking,
-  sqlite,
-  gobject-introspection,
-  vala,
-  gtk-doc,
-  libsecret,
-  docbook_xsl,
-  docbook_xml_dtd_43,
-  docbook_xml_dtd_45,
-  glibcLocales,
-  makeWrapper,
-  symlinkJoin,
-  gsignondPlugins,
-  plugins,
-}:
-
-let
-  unwrapped = stdenv.mkDerivation rec {
-    pname = "gsignond";
-    version = "1.2.0";
-
-    outputs = [
-      "out"
-      "dev"
-      "devdoc"
-    ];
-
-    src = fetchFromGitLab {
-      owner = "accounts-sso";
-      repo = pname;
-      rev = version;
-      sha256 = "17cpil3lpijgyj2z5c41vhb7fpk17038k5ggyw9p6049jrlf423m";
-    };
-
-    nativeBuildInputs = [
-      docbook_xml_dtd_43
-      docbook_xml_dtd_45
-      docbook_xsl
-      glibcLocales
-      gobject-introspection
-      gtk-doc
-      meson
-      ninja
-      pkg-config
-      vala
-    ];
-
-    buildInputs = [
-      glib
-      glib-networking
-      libsecret
-    ];
-
-    propagatedBuildInputs = [ sqlite ];
-
-    mesonFlags = [
-      "-Dbus_type=session"
-      "-Dextension=desktop"
-    ];
-
-    LC_ALL = "en_US.UTF-8";
-
-    patches = [
-      ./conf.patch
-      ./plugin-load-env.patch
-    ];
-
-    meta = with lib; {
-      description = "D-Bus service which performs user authentication on behalf of its clients";
-      mainProgram = "gsignond";
-      homepage = "https://gitlab.com/accounts-sso/gsignond";
-      license = licenses.lgpl21Plus;
-      maintainers = [ ];
-      platforms = platforms.linux;
-    };
-  };
-
-in
-if plugins == [ ] then
-  unwrapped
-else
-  import ./wrapper.nix {
-    inherit makeWrapper symlinkJoin plugins;
-    gsignond = unwrapped;
-  }
diff --git a/pkgs/development/libraries/gsignond/plugin-load-env.patch b/pkgs/development/libraries/gsignond/plugin-load-env.patch
deleted file mode 100644
index 5da2b4c157e8..000000000000
--- a/pkgs/development/libraries/gsignond/plugin-load-env.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-diff --git a/src/gplugind/gsignond-plugin-loader.c b/src/gplugind/gsignond-plugin-loader.c
-index 5497b32..979e1b4 100644
---- a/src/gplugind/gsignond-plugin-loader.c
-+++ b/src/gplugind/gsignond-plugin-loader.c
-@@ -38,11 +38,10 @@ gsignond_load_plugin (
-     gchar *plugin_filename;
-     GSignondPlugin *plugin;
- 
--#   ifdef ENABLE_DEBUG
-     const gchar *env_val = g_getenv("SSO_GPLUGINS_DIR");
-     if (env_val)
-         plugin_path = env_val;
--#   endif
-+
-     plugin_filename = g_module_build_path (plugin_path, plugin_type);
-     plugin = gsignond_load_plugin_with_filename (plugin_type,
-                                                  plugin_filename);
-diff --git a/src/gplugind/main.c b/src/gplugind/main.c
-index 1c6cdb6..c85c623 100644
---- a/src/gplugind/main.c
-+++ b/src/gplugind/main.c
-@@ -93,11 +93,11 @@ _install_sighandlers (GMainLoop *main_loop)
- static const gchar* _plugin_path(void)
- {
-     const gchar *plugin_path = GSIGNOND_GPLUGINS_DIR;
--#   ifdef ENABLE_DEBUG
-+
-     const gchar *env_val = g_getenv("SSO_GPLUGINS_DIR");
-     if (env_val)
-         plugin_path = env_val;
--#   endif
-+
-     return plugin_path;
- }
- 
diff --git a/pkgs/development/libraries/gsignond/plugins/lastfm.nix b/pkgs/development/libraries/gsignond/plugins/lastfm.nix
deleted file mode 100644
index 9f55e89e32b6..000000000000
--- a/pkgs/development/libraries/gsignond/plugins/lastfm.nix
+++ /dev/null
@@ -1,51 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitLab,
-  pkg-config,
-  meson,
-  ninja,
-  vala,
-  glib,
-  gsignond,
-  json-glib,
-  libsoup_2_4,
-  gobject-introspection,
-}:
-
-stdenv.mkDerivation {
-  pname = "gsignond-plugin-lastfm";
-  version = "2018-05-07";
-
-  src = fetchFromGitLab {
-    owner = "accounts-sso";
-    repo = "gsignond-plugin-lastfm";
-    rev = "0a7a5f8511282e45cfe35987b81f27f158f0648c";
-    sha256 = "0ay6ir9zg9l0264x5xwd7c6j8qmwlhrifkkkjd1yrjh9sqxyfj7f";
-  };
-
-  nativeBuildInputs = [
-    gobject-introspection
-    meson
-    ninja
-    pkg-config
-    vala
-  ];
-
-  buildInputs = [
-    glib
-    gsignond
-    json-glib
-    libsoup_2_4
-  ];
-
-  PKG_CONFIG_GSIGNOND_GPLUGINSDIR = "${placeholder "out"}/lib/gsignond/gplugins";
-
-  meta = with lib; {
-    description = "Plugin for the Accounts-SSO gSignOn daemon that handles Last.FM credentials";
-    homepage = "https://gitlab.com/accounts-sso/gsignond-plugin-lastfm";
-    license = licenses.lgpl21Plus;
-    maintainers = [ ];
-    platforms = platforms.linux;
-  };
-}
diff --git a/pkgs/development/libraries/gsignond/plugins/mail.nix b/pkgs/development/libraries/gsignond/plugins/mail.nix
deleted file mode 100644
index 610f3e100de2..000000000000
--- a/pkgs/development/libraries/gsignond/plugins/mail.nix
+++ /dev/null
@@ -1,47 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitLab,
-  pkg-config,
-  meson,
-  ninja,
-  vala,
-  glib,
-  gsignond,
-  gobject-introspection,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "gsignond-plugin-mail";
-  version = "0.3.0";
-
-  src = fetchFromGitLab {
-    owner = "accounts-sso";
-    repo = "gsignond-plugin-mail";
-    rev = version;
-    sha256 = "0x8jcl0ra9kacm80f1im5wpxp9r9wxayjwnk6dkv7fhjbl2p4nh0";
-  };
-
-  nativeBuildInputs = [
-    gobject-introspection
-    meson
-    ninja
-    pkg-config
-    vala
-  ];
-
-  buildInputs = [
-    glib
-    gsignond
-  ];
-
-  PKG_CONFIG_GSIGNOND_GPLUGINSDIR = "${placeholder "out"}/lib/gsignond/gplugins";
-
-  meta = with lib; {
-    description = "Plugin for the Accounts-SSO gSignOn daemon that handles E-Mail credentials";
-    homepage = "https://gitlab.com/accounts-sso/gsignond-plugin-mail";
-    license = licenses.lgpl21Plus;
-    maintainers = [ ];
-    platforms = platforms.linux;
-  };
-}
diff --git a/pkgs/development/libraries/gsignond/plugins/oauth.nix b/pkgs/development/libraries/gsignond/plugins/oauth.nix
deleted file mode 100644
index a26ce6caa1c6..000000000000
--- a/pkgs/development/libraries/gsignond/plugins/oauth.nix
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitLab,
-  pkg-config,
-  meson,
-  ninja,
-  glib,
-  gsignond,
-  check,
-  json-glib,
-  libsoup_2_4,
-  gnutls,
-  gtk-doc,
-  docbook_xml_dtd_43,
-  docbook_xml_dtd_45,
-  docbook_xsl,
-  glibcLocales,
-  gobject-introspection,
-}:
-
-stdenv.mkDerivation {
-  pname = "gsignond-plugin-oauth";
-  version = "2018-10-15";
-
-  src = fetchFromGitLab {
-    owner = "accounts-sso";
-    repo = "gsignond-plugin-oa";
-    rev = "d471cebfd7c50567b1244277a9559f18f8d58691";
-    sha256 = "00axl8wwp2arc6h4bpr4m3ik2hy8an0lbm48q2a9r94krmq56hnx";
-  };
-
-  nativeBuildInputs = [
-    check
-    docbook_xml_dtd_43
-    docbook_xml_dtd_45
-    docbook_xsl
-    glibcLocales
-    gobject-introspection
-    gtk-doc
-    meson
-    ninja
-    pkg-config
-  ];
-
-  buildInputs = [
-    glib
-    gnutls
-    gsignond
-    json-glib
-    libsoup_2_4
-  ];
-
-  LC_ALL = "en_US.UTF-8";
-
-  PKG_CONFIG_GSIGNOND_GPLUGINSDIR = "${placeholder "out"}/lib/gsignond/gplugins";
-
-  meta = with lib; {
-    description = "Plugin for the Accounts-SSO gSignOn daemon that handles the OAuth 1.0 and 2.0 authentication protocols";
-    homepage = "https://gitlab.com/accounts-sso/gsignond-plugin-oa";
-    license = licenses.lgpl21Plus;
-    maintainers = [ ];
-    platforms = platforms.linux;
-  };
-}
diff --git a/pkgs/development/libraries/gsignond/plugins/sasl.nix b/pkgs/development/libraries/gsignond/plugins/sasl.nix
deleted file mode 100644
index 5a89d996743a..000000000000
--- a/pkgs/development/libraries/gsignond/plugins/sasl.nix
+++ /dev/null
@@ -1,61 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitLab,
-  pkg-config,
-  meson,
-  ninja,
-  glib,
-  gsignond,
-  gsasl,
-  check,
-  gtk-doc,
-  docbook_xml_dtd_43,
-  docbook_xml_dtd_45,
-  docbook_xsl,
-  glibcLocales,
-  gobject-introspection,
-}:
-
-stdenv.mkDerivation {
-  pname = "gsignond-plugin-sasl";
-  version = "2018-10-15";
-
-  src = fetchFromGitLab {
-    owner = "accounts-sso";
-    repo = "gsignond-plugin-sasl";
-    rev = "b304c70b7dad9368b23b1205122d10de684c896a";
-    sha256 = "0knzw7c2fm2kzs1gxbrm4kk67522w9cpwqj7xvn86473068k90va";
-  };
-
-  nativeBuildInputs = [
-    check
-    docbook_xml_dtd_43
-    docbook_xml_dtd_45
-    docbook_xsl
-    glibcLocales
-    gobject-introspection
-    gtk-doc
-    meson
-    ninja
-    pkg-config
-  ];
-
-  buildInputs = [
-    glib
-    gsasl
-    gsignond
-  ];
-
-  LC_ALL = "en_US.UTF-8";
-
-  PKG_CONFIG_GSIGNOND_GPLUGINSDIR = "${placeholder "out"}/lib/gsignond/gplugins";
-
-  meta = with lib; {
-    description = "Plugin for the Accounts-SSO gSignOn daemon that handles the SASL authentication protocol";
-    homepage = "https://gitlab.com/accounts-sso/gsignond-plugin-sasl";
-    license = licenses.lgpl21Plus;
-    maintainers = [ ];
-    platforms = platforms.linux;
-  };
-}
diff --git a/pkgs/development/libraries/gsignond/wrapper.nix b/pkgs/development/libraries/gsignond/wrapper.nix
deleted file mode 100644
index ab7f6b9817df..000000000000
--- a/pkgs/development/libraries/gsignond/wrapper.nix
+++ /dev/null
@@ -1,30 +0,0 @@
-{
-  makeWrapper,
-  symlinkJoin,
-  gsignond,
-  plugins,
-}:
-
-symlinkJoin {
-  name = "gsignond-with-plugins-${gsignond.version}";
-
-  paths = [ gsignond ] ++ plugins;
-
-  nativeBuildInputs = [ makeWrapper ];
-
-  postBuild = ''
-    wrapProgram $out/bin/gsignond \
-      --set SSO_GPLUGINS_DIR "$out/lib/gsignond/gplugins"
-
-    rm $out/share/dbus-1/services/com.google.code.AccountsSSO.gSingleSignOn.service
-    rm $out/share/dbus-1/services/com.google.code.AccountsSSO.SingleSignOn.service
-
-    substitute ${gsignond}/share/dbus-1/services/com.google.code.AccountsSSO.gSingleSignOn.service $out/share/dbus-1/services/com.google.code.AccountsSSO.gSingleSignOn.service \
-      --replace ${gsignond} $out
-
-    substitute ${gsignond}/share/dbus-1/services/com.google.code.AccountsSSO.SingleSignOn.service $out/share/dbus-1/services/com.google.code.AccountsSSO.SingleSignOn.service \
-      --replace ${gsignond} $out
-  '';
-
-  inherit (gsignond) meta;
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index bf73af27c39e..a9a43e5d8bb9 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -794,6 +794,8 @@ mapAliases {
   gringo = clingo; # added 2022-11-27
   grub2_full = grub2; # Added 2022-11-18
   grun = throw "grun has been removed due to lack of maintenance upstream and depending on gtk2"; # Added 2025-03-29
+  gsignond = throw "'gsignond' and its plugins have been removed due to lack of maintenance upstream"; # added 2025-04-17
+  gsignondPlugins = throw "'gsignondPlugins' have been removed alongside 'gsignond' due to lack of maintenance upstream and depending on libsoup_2"; # added 2025-04-17
   gtetrinet = throw "'gtetrinet' has been removed because it depends on GNOME 2 libraries"; # Added 2024-06-27
   gtk-engine-bluecurve = "'gtk-engine-bluecurve' has been removed as it has been archived upstream."; # Added 2024-12-04
   gtk2fontsel = throw "'gtk2fontsel' has been removed due to lack of maintenance upstream. GTK now has a built-in font chooser so it's no longer needed for newer apps"; # Added 2024-10-19
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 59533d28d173..ff9041c61f98 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11508,17 +11508,6 @@ with pkgs;
 
   aroccStdenv = if stdenv.cc.isArocc then stdenv else lowPrio arocc.cc.passthru.stdenv;
 
-  gsignond = callPackage ../development/libraries/gsignond {
-    plugins = [ ];
-  };
-
-  gsignondPlugins = recurseIntoAttrs {
-    sasl = callPackage ../development/libraries/gsignond/plugins/sasl.nix { };
-    oauth = callPackage ../development/libraries/gsignond/plugins/oauth.nix { };
-    lastfm = callPackage ../development/libraries/gsignond/plugins/lastfm.nix { };
-    mail = callPackage ../development/libraries/gsignond/plugins/mail.nix { };
-  };
-
   ### DEVELOPMENT / LIBRARIES / DARWIN SDKS
 
   apple-sdk_11 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "11"; };