diff --git a/pkgs/applications/networking/instant-messengers/gitter/default.nix b/pkgs/applications/networking/instant-messengers/gitter/default.nix
deleted file mode 100644
index 04d8909f3d89..000000000000
--- a/pkgs/applications/networking/instant-messengers/gitter/default.nix
+++ /dev/null
@@ -1,102 +0,0 @@
-{ lib, stdenv, alsa-lib, atk, at-spi2-core, cairo, cups, dbus, dpkg, expat, fetchurl
-, fontconfig, freetype, gdk-pixbuf, glib, gtk3,  libdrm, libX11
-, libXScrnSaver, libXcomposite, libXcursor, libXdamage, libXext, libXfixes
-, libXi, libXrandr, libXrender, libXtst, libappindicator-gtk3, libcxx
-, libnotify, libpulseaudio, libxcb, makeDesktopItem, makeWrapper, mesa, nspr, nss
-, pango, systemd }:
-
-let gitterDirectorySuffix = "opt/gitter";
-   libPath = lib.makeLibraryPath [
-     alsa-lib
-     atk
-     at-spi2-core
-     cairo
-     cups
-     dbus
-     expat
-     fontconfig
-     freetype
-     gdk-pixbuf
-     glib
-     gtk3
-     libX11
-     libXScrnSaver
-     libXcomposite
-     libXcursor
-     libXdamage
-     libXext
-     libXfixes
-     libXi
-     libXrandr
-     libXrender
-     libXtst
-     libappindicator-gtk3
-     libcxx
-     libdrm
-     libnotify
-     libpulseaudio
-     libxcb
-     mesa
-     nspr
-     nss
-     pango
-     stdenv.cc.cc
-     systemd
-  ];
-    doELFPatch = target: ''
-      patchelf --set-interpreter ${stdenv.cc.bintools.dynamicLinker} \
-         --set-rpath "$out/${gitterDirectorySuffix}/lib:${libPath}" \
-         $out/${gitterDirectorySuffix}/${target}
-       '';
-in stdenv.mkDerivation rec {
-  pname = "gitter";
-  version = "5.0.1";
-
-  src = fetchurl {
-    url = "https://update.gitter.im/linux64/${pname}_${version}_amd64.deb";
-    sha256 = "1ps9akylqrril4902r8mi0mprm0hb5wra51ry6c1rb5xz5nrzgh1";
-  };
-
-  nativeBuildInputs = [ makeWrapper dpkg ];
-
-  unpackPhase = "dpkg -x $src .";
-
-  installPhase = ''
-    mkdir -p $out/{bin,opt/gitter,share/pixmaps}
-    mv ./opt/Gitter/linux64/* $out/opt/gitter
-
-    ${doELFPatch "Gitter"}
-    ${doELFPatch "nacl_helper"}
-    ${doELFPatch "minidump_stackwalk"}
-    ${doELFPatch "nwjc"}
-    ${doELFPatch "chromedriver"}
-    ${doELFPatch "payload"}
-
-    patchelf --set-rpath "$out/${gitterDirectorySuffix}/lib:${libPath}" \
-         $out/${gitterDirectorySuffix}/lib/libnw.so
-
-    wrapProgram $out/${gitterDirectorySuffix}/Gitter --prefix LD_LIBRARY_PATH : ${libPath}
-
-    ln -s $out/${gitterDirectorySuffix}/Gitter $out/bin/
-    ln -s $out/${gitterDirectorySuffix}/logo.png $out/share/pixmaps/gitter.png
-    ln -s "${desktopItem}/share/applications" $out/share/
-  '';
-
-  desktopItem = makeDesktopItem {
-    name = pname;
-    exec = "Gitter";
-    icon = pname;
-    desktopName = "Gitter";
-    genericName = meta.description;
-    categories = [ "Network" "InstantMessaging" ];
-  };
-
-  meta = with lib; {
-    description = "Where developers come to talk";
-    downloadPage = "https://gitter.im/apps";
-    sourceProvenance = with sourceTypes; [ binaryNativeCode ];
-    license = licenses.mit;
-    maintainers = [ maintainers.imalison ];
-    platforms = [ "x86_64-linux" ];
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 363e0969e10e..1e787043d9d2 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -617,6 +617,7 @@ mapAliases ({
 
   gitin = throw "gitin has been remove because it was unmaintained and depended on an insecure version of libgit2"; # Added 2021-12-07
   gitinspector = throw "gitinspector has been removed because it doesn't work with python3"; # Added 2022-01-12
+  gitter = throw "gitter has been removed since the client has been abandoned by upstream with the backend migration to Matrix"; # Added 2023-09-18
   gksu = throw "gksu has been removed"; # Added 2022-01-16
   glib_networking = throw "'glib_networking' has been renamed to/replaced by 'glib-networking'"; # Converted to throw 2022-02-22
   glimpse = throw "glimpse was removed, as the project was discontinued. You can use gimp instead."; # Added 2022-07-11
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5e1b3462ee4a..706c024e6158 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3831,8 +3831,6 @@ with pkgs;
 
   gistyc = with python3Packages; toPythonApplication gistyc;
 
-  gitter = callPackage  ../applications/networking/instant-messengers/gitter { };
-
   gjs = callPackage ../development/libraries/gjs { };
 
   gjo = callPackage ../tools/text/gjo { };