diff --git a/pkgs/applications/misc/MozPhab/default.nix b/pkgs/applications/misc/MozPhab/default.nix
new file mode 100644
index 00000000000000..4590d172e4d23a
--- /dev/null
+++ b/pkgs/applications/misc/MozPhab/default.nix
@@ -0,0 +1,29 @@
+{ lib, python3Packages, pkgs }:
+
+python3Packages.buildPythonApplication rec {
+  pname = "MozPhab";
+  version = "0.1.74";
+
+  src = python3Packages.fetchPypi {
+    inherit pname version;
+    sha256 = "1qbl54pvba15b2ic9lxsajakbk4gj1rjazzj4qbrh43ngllrhi7y";
+  };
+
+  propagatedBuildInputs = [
+    python3Packages.setuptools
+    pkgs.mercurial
+  ];
+
+  meta = with lib; {
+    description = "Phabricator CLI from Mozilla to support submission of a series of commits";
+    longDescription = ''
+      MozPhab is a custom command-line tool, moz-phab, which communicates to
+      Phabricator’s API, providing several conveniences, including support for
+      submitting series of commits.
+    '';
+    homepage = "https://moz-conduit.readthedocs.io/en/latest/phabricator-user.html";
+    license = licenses.mpl20;
+    maintainers = [ maintainers.raboof ];
+    platforms = platforms.all;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index bb99a1aa2b40dd..1b915540eb9fe3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4742,6 +4742,8 @@ in
 
   motion = callPackage ../applications/video/motion { };
 
+  MozPhab = callPackage ../applications/misc/MozPhab { };
+
   mtail = callPackage ../servers/monitoring/mtail {
     inherit (darwin.apple_sdk.frameworks) Security;
   };