diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 3d75d92be9801..ba7e2c9e5a3b4 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -580,6 +580,11 @@
     githubId = 2071575;
     name = "Adam C. Stephens";
   };
+  adamecooper = {
+    github = "adamecooper";
+    githubId = 155130052;
+    name = "Adam Cooper";
+  };
   adamjhf = {
     github = "adamjhf";
     githubId = 50264672;
diff --git a/pkgs/development/python-modules/sphinxcontrib-mermaid/default.nix b/pkgs/development/python-modules/sphinxcontrib-mermaid/default.nix
new file mode 100644
index 0000000000000..882cb58d963c5
--- /dev/null
+++ b/pkgs/development/python-modules/sphinxcontrib-mermaid/default.nix
@@ -0,0 +1,52 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  pyyaml,
+  sphinx,
+  setuptools,
+  defusedxml,
+  myst-parser,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "sphinxcontrib-mermaid";
+  version = "1.0.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "mgaitan";
+    repo = "sphinxcontrib-mermaid";
+    rev = version;
+    hash = "sha256-OO2fbtB2qLjsIGjRJrBDDRn8dT9qowfU6i8qRBbDRTM=";
+  };
+
+  build-system = [ setuptools ];
+
+  dependencies = [
+    pyyaml
+    sphinx
+  ];
+
+  optional-dependencies = {
+    test = [
+      defusedxml
+      myst-parser
+      sphinx
+    ];
+  };
+
+  nativeCheckInputs = [ pytestCheckHook ] ++ optional-dependencies.test;
+
+  pythonImportsCheck = [ "sphinxcontrib.mermaid" ];
+
+  meta = {
+    description = "Mermaid diagrams in yours sphinx powered docs";
+    homepage = "https://github.com/mgaitan/sphinxcontrib-mermaid";
+    changelog = "https://github.com/mgaitan/sphinxcontrib-mermaid/blob/${src.rev}/CHANGELOG.rst";
+    license = lib.licenses.bsd2;
+    maintainers = with lib.maintainers; [ adamecooper ];
+    mainProgram = "sphinxcontrib-mermaid";
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 96b412d8e7a51..f64d6f76a9476 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -17491,6 +17491,8 @@ self: super: with self; {
 
   sphinxcontrib-log-cabinet = callPackage ../development/python-modules/sphinxcontrib-log-cabinet { };
 
+  sphinxcontrib-mermaid = callPackage ../development/python-modules/sphinxcontrib-mermaid { };
+
   sphinxcontrib-moderncmakedomain =
     callPackage ../development/python-modules/sphinxcontrib-moderncmakedomain
       { };