diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index d7f39c64b9df7..be6a710ee76f5 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -9775,6 +9775,12 @@
     githubId = 155722885;
     name = "Joachim Ernst";
   };
+  hemera = {
+    email = "neikos@neikos.email";
+    github = "TheNeikos";
+    githubId = 1631166;
+    name = "Marcel Müller";
+  };
   henkery = {
     email = "jim@reupload.nl";
     github = "henkery";
diff --git a/pkgs/development/python-modules/cddlparser/default.nix b/pkgs/development/python-modules/cddlparser/default.nix
new file mode 100644
index 0000000000000..1737f4b85b483
--- /dev/null
+++ b/pkgs/development/python-modules/cddlparser/default.nix
@@ -0,0 +1,37 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  # dependencies
+  setuptools,
+}:
+
+buildPythonPackage rec {
+  pname = "cddlparser";
+  version = "0.5.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "tidoust";
+    repo = pname;
+    tag = "v${version}";
+    sha256 = "sha256-Hrf6u5HeCICffgPAOcbb1FhybEVhgre7EXzQZhS8D9o=";
+  };
+
+  build-system = [
+    setuptools
+  ];
+
+  meta = {
+    homepage = "https://github.com/tidoust/cddlparser";
+    downloadPage = "https://github.com/tidoust/cddlparser/releases";
+    description = "Concise data definition language (RFC 8610) parser implementation in Python";
+    longDescription = ''
+      A CDDL parser in Python
+
+      Concise data definition language (RFC 8610) parser implementation in Python.
+    '';
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ hemera ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index ae264ecccc246..43707004bea10 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2302,6 +2302,8 @@ self: super: with self; {
 
   cdcs = callPackage ../development/python-modules/cdcs { };
 
+  cddlparser = callPackage ../development/python-modules/cddlparser { };
+
   celery = callPackage ../development/python-modules/celery { };
 
   celery-batches = callPackage ../development/python-modules/celery-batches { };