diff --git a/pkgs/development/ocaml-modules/pacomb/default.nix b/pkgs/development/ocaml-modules/pacomb/default.nix
new file mode 100644
index 000000000000..05539235afd5
--- /dev/null
+++ b/pkgs/development/ocaml-modules/pacomb/default.nix
@@ -0,0 +1,32 @@
+{
+  lib,
+  buildDunePackage,
+  fetchFromGitHub,
+  ppxlib,
+  stdlib-shims,
+}:
+
+buildDunePackage (finalAttrs: {
+  pname = "pacomb";
+  version = "1.4.3";
+  src = fetchFromGitHub {
+    owner = "craff";
+    repo = "pacomb";
+    tag = finalAttrs.version;
+    hash = "sha256-iS5H/xnMqZjSvrvj5YkBP8j/ChIn/xbQ9xa7WipBUvQ=";
+  };
+  buildInputs = [
+    ppxlib
+  ];
+  propagatedBuildInputs = [
+    stdlib-shims
+  ];
+  minimalOCamlVersion = "5.3";
+
+  meta = {
+    description = "Parsing library based on combinators and ppx extension to write languages";
+    homepage = "https://github.com/craff/pacomb";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ redianthus ];
+  };
+})
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 04d368e4c4c4..1d7fe1f0d38d 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -1689,6 +1689,8 @@ let
 
         ### P ###
 
+        pacomb = callPackage ../development/ocaml-modules/pacomb { };
+
         paf = callPackage ../development/ocaml-modules/paf { };
 
         paf-cohttp = callPackage ../development/ocaml-modules/paf/cohttp.nix {