diff --git a/pkgs/servers/web-apps/mediawiki/default.nix b/pkgs/servers/web-apps/mediawiki/default.nix
new file mode 100644
index 00000000000..e526afe661c
--- /dev/null
+++ b/pkgs/servers/web-apps/mediawiki/default.nix
@@ -0,0 +1,39 @@
+{ stdenv, fetchurl, makeWrapper, writeText }:
+
+stdenv.mkDerivation rec {
+  pname = "mediawiki";
+  version = "1.33.0";
+
+  src = with stdenv.lib; fetchurl {
+    url = "https://releases.wikimedia.org/mediawiki/${versions.majorMinor version}/${pname}-${version}.tar.gz";
+    sha256 = "0rydzmr64r3p5n6g8v9rifk277z1v31p82s8ka8xap8cfkca4dc3";
+  };
+
+  prePatch = ''
+    sed -i 's|$vars = Installer::getExistingLocalSettings();|$vars = null;|' includes/installer/CliInstaller.php
+  '';
+
+  phpConfig = writeText "LocalSettings.php" ''
+  <?php
+    return require(getenv('MEDIAWIKI_CONFIG'));
+  ?>
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/share/mediawiki
+    cp -r * $out/share/mediawiki
+    cp ${phpConfig} $out/share/mediawiki/LocalSettings.php
+
+    runHook postInstall
+  '';
+
+  meta = with stdenv.lib; {
+    description = "The collaborative editing software that runs Wikipedia";
+    license = licenses.gpl2Plus;
+    homepage = "https://www.mediawiki.org/";
+    platforms = platforms.all;
+    maintainers = [ maintainers.redvers ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 79388cefe84..e0351d3e108 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4579,6 +4579,8 @@ in
       };
     };
 
+  mediawiki = callPackage ../servers/web-apps/mediawiki { };
+
   memtier-benchmark = callPackage ../tools/networking/memtier-benchmark { };
 
   memtest86-efi = callPackage ../tools/misc/memtest86-efi { };