diff --git a/pkgs/development/python-modules/kanalizer/default.nix b/pkgs/development/python-modules/kanalizer/default.nix
new file mode 100644
index 000000000000..06965e2120ab
--- /dev/null
+++ b/pkgs/development/python-modules/kanalizer/default.nix
@@ -0,0 +1,71 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchurl,
+  fetchFromGitHub,
+  rustPlatform,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "kanalizer";
+  version = "0.1.1";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "VOICEVOX";
+    repo = "kanalizer";
+    tag = version;
+    hash = "sha256-6GxTVlc0Ec80LYQoGgLVRVoi05u6vwt5WGkd4UYX2Lg=";
+  };
+
+  sourceRoot = "${src.name}/infer";
+
+  model =
+    let
+      modelTag = "v5";
+    in
+    fetchurl {
+      url = "https://huggingface.co/VOICEVOX/kanalizer-model/resolve/${modelTag}/model/c2k.safetensors";
+      hash = "sha256-sKhunAsN9Uwz2O1+eFQN8fh09eq67cFotTtLHsWJBRM=";
+    };
+
+  prePatch = ''
+    substituteInPlace Cargo.toml \
+      --replace-fail 'version = "0.0.0"' 'version = "${version}"'
+
+    ln -s "$model" crates/kanalizer-rs/models/model-c2k.safetensors
+  '';
+
+  cargoDeps = rustPlatform.fetchCargoVendor {
+    inherit
+      pname
+      version
+      src
+      sourceRoot
+      ;
+    hash = "sha256-2vnld5ReLsjm0kRoRAXhm+d0yj7AjfEr83xXhuyPbOU=";
+  };
+
+  buildAndTestSubdir = "crates/kanalizer-py";
+
+  nativeBuildInputs = [
+    rustPlatform.cargoSetupHook
+    rustPlatform.maturinBuildHook
+  ];
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "kanalizer" ];
+
+  meta = {
+    description = "Library that guesses the Japanese pronounciation of English words";
+    homepage = "https://github.com/VOICEVOX/kanalizer";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ tomasajt ];
+    sourceProvenance = with lib.sourceTypes; [
+      fromSource
+      binaryNativeCode # the model file
+    ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 324afdf61bbe..f6ed3e7c313e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -7555,6 +7555,8 @@ self: super: with self; {
 
   kalshi-python = callPackage ../development/python-modules/kalshi-python { };
 
+  kanalizer = callPackage ../development/python-modules/kanalizer { };
+
   kanidm = callPackage ../development/python-modules/kanidm { };
 
   kaptan = callPackage ../development/python-modules/kaptan { };