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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/pkgs/development/python-modules/jiter/default.nix b/pkgs/development/python-modules/jiter/default.nix
new file mode 100644
index 000000000000..4f23966dcc16
--- /dev/null
+++ b/pkgs/development/python-modules/jiter/default.nix
@@ -0,0 +1,51 @@
+{
+  lib,
+  buildPythonPackage,
+  rustPlatform,
+  fetchFromGitHub,
+  libiconv,
+  dirty-equals,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "jiter";
+  version = "0.5.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "pydantic";
+    repo = "jiter";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-EgovddXbwutLaVkosdbJ2Y3BpEms+RoeaO8ghBRNdio=";
+  };
+
+  postPatch = ''
+    cp ${./Cargo.lock} Cargo.lock
+  '';
+
+  cargoDeps = rustPlatform.importCargoLock { lockFile = ./Cargo.lock; };
+
+  buildAndTestSubdir = "crates/jiter-python";
+
+  nativeBuildInputs = [ rustPlatform.cargoSetupHook ];
+
+  build-system = [ rustPlatform.maturinBuildHook ];
+
+  buildInputs = [ libiconv ];
+
+  pythonImportsCheck = [ "jiter" ];
+
+  nativeCheckInputs = [
+    dirty-equals
+    pytestCheckHook
+  ];
+
+  meta = {
+    description = "Fast iterable JSON parser";
+    homepage = "https://github.com/pydantic/jiter/";
+    changelog = "https://github.com/pydantic/jiter/releases/tag/v${version}";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ natsukium ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index d6f924eaa949..aa64b030c9d6 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6184,6 +6184,8 @@ self: super: with self; {
 
   jishaku = callPackage ../development/python-modules/jishaku { };
 
+  jiter = callPackage ../development/python-modules/jiter { };
+
   jiwer = callPackage ../development/python-modules/jiwer { };
 
   jmespath = callPackage ../development/python-modules/jmespath { };