diff --git a/pkgs/development/python-modules/root_numpy/default.nix b/pkgs/development/python-modules/root_numpy/default.nix
new file mode 100644
index 000000000000..008bafae9d75
--- /dev/null
+++ b/pkgs/development/python-modules/root_numpy/default.nix
@@ -0,0 +1,23 @@
+{ lib, fetchPypi, isPy3k, buildPythonPackage, numpy, root }:
+
+buildPythonPackage rec {
+  pname = "root_numpy";
+  version = "4.7.3";
+  name = "${pname}-${version}";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0vy6mqmkddfv46yc4hp43fvaisn3yw92ryaw031k841hhj73q0xg";
+  };
+
+  disabled = isPy3k; # blocked by #27649
+
+  propagatedBuildInputs = [ numpy root ];
+
+  meta = with lib; {
+    homepage = http://scikit-hep.org/root_numpy;
+    license = licenses.bsd3;
+    description = "The interface between ROOT and NumPy";
+    maintainers = with maintainers; [ veprbl ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index b27147e18b50..d42454dc043f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -18919,6 +18919,8 @@ in {
     };
   };
 
+  root_numpy = callPackage ../development/python-modules/root_numpy { };
+
   rootpy = buildPythonPackage rec {
     version = "0.9.0";
     name = "rootpy-${version}";