Jeff Baena (June 29, 1977 – January 3, 2025) was an American screenwriter and film director known for Life After Beth (2014), Joshy (2016), The Little Hours (2017), Horse Girl (2020), Spin Me Round (2022), and for co-writing I Heart Huckabees (2004). He was known for his frequent collaborations with actresses Alison Brie and his wife Aubrey Plaza.

After graduating NYU Film School, Baena moved to Los Angeles to start building his career. He became a production assistant for Robert Zemeckis, working on a number of films. After working with Zemeckis, Baena took a job as an assistant editor for writer-director David O.