diff --git a/pkgs/development/python-modules/mkdocs-build-plantuml/default.nix b/pkgs/development/python-modules/mkdocs-build-plantuml/default.nix
new file mode 100644
index 000000000000..be7a03fa53ad
--- /dev/null
+++ b/pkgs/development/python-modules/mkdocs-build-plantuml/default.nix
@@ -0,0 +1,45 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  pkgs, # Only for pkgs.plantuml,
+  setuptools,
+  httplib2,
+}:
+
+buildPythonPackage rec {
+  pname = "mkdocs-build-plantuml";
+  version = "1.11.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "christo-ph";
+    repo = "mkdocs_build_plantuml";
+    tag = version;
+    hash = "sha256-cbyxvWBIV+v81m+xGZZsUypkM1uuj4ADMUrAYlc/XBI=";
+  };
+
+  # There's only one substitution, no patch is needed.
+  postPatch = ''
+    substituteInPlace mkdocs_build_plantuml_plugin/plantuml.py \
+      --replace-fail '/usr/local/bin/plantuml' '${lib.getExe pkgs.plantuml}'
+  '';
+
+  build-system = [ setuptools ];
+
+  dependencies = [
+    httplib2
+  ];
+
+  pythonImportsCheck = [ "mkdocs_build_plantuml_plugin" ];
+
+  # No tests available
+  doCheck = false;
+
+  meta = {
+    description = "MkDocs plugin to help generate your plantuml images locally or remotely as files (NOT inline)";
+    homepage = "https://github.com/christo-ph/mkdocs_build_plantuml";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ drupol ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 6ac6f21790d5..afa1603bc669 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -9273,6 +9273,8 @@ self: super: with self; {
 
   mkdocs-backlinks = callPackage ../development/python-modules/mkdocs-backlinks { };
 
+  mkdocs-build-plantuml = callPackage ../development/python-modules/mkdocs-build-plantuml { };
+
   mkdocs-drawio-exporter = callPackage ../development/python-modules/mkdocs-drawio-exporter { };
 
   mkdocs-drawio-file = callPackage ../development/python-modules/mkdocs-drawio-file { };