Writing
Warren Kiefer
- Place of birth: New Jersey, USA
- Gender: Male
- Also known as: Lorenzo Sabatini, Middleton Kiefer
Warren Kiefer (1929–1995) was an American film director and screenwriter from New Jersey. He used the alias Lorenzo Sabatini, while working in Italy. He named himself after the 16th-century painter Lorenzo Sabbatini, whom he admired.
