diff --git a/pkgs/development/ocaml-modules/ppx_show/default.nix b/pkgs/development/ocaml-modules/ppx_show/default.nix
new file mode 100644
index 000000000000..6d33e0f0c163
--- /dev/null
+++ b/pkgs/development/ocaml-modules/ppx_show/default.nix
@@ -0,0 +1,27 @@
+{ lib, buildDunePackage, fetchFromGitHub
+, stdcompat, ppxlib
+}:
+
+buildDunePackage rec {
+  pname = "ppx_show";
+  version = "0.2.1";
+
+  src = fetchFromGitHub {
+    owner = "thierry-martinez";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-YwWAdOtb0zg2hqNkGRiigz/Pci8Jy/QD+WyUEohEsns=";
+  };
+
+  buildInputs = [
+    stdcompat
+    ppxlib
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/thierry-martinez/${pname}";
+    description = "OCaml PPX deriver for deriving show based on ppxlib";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ niols ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index d9ff56ca05aa..154230659901 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1375,6 +1375,8 @@ let
 
     ppx_repr = callPackage ../development/ocaml-modules/repr/ppx.nix { };
 
+    ppx_show = callPackage ../development/ocaml-modules/ppx_show { };
+
     ppx_tools =
       if lib.versionAtLeast ocaml.version "4.02"
       then callPackage ../development/ocaml-modules/ppx_tools {}