A Complete Unknown is a 2024 American biographical musical drama film directed by James Mangold, who co-wrote the screenplay with Jay Cocks, about American singer-songwriter Bob Dylan. Based on the 2015 book Dylan Goes Electric! by Elijah Wald, the film portrays Dylan through his earliest folk music success until the momentous controversy over his use of electric instruments. Timothée Chalamet (who also produces) stars as Dylan, with Edward Norton, Elle Fanning, Monica Barbaro, Boyd Holbrook, Dan Fogler, Norbert Leo Butz, Eriko Hatsune, Big Bill Morganfield, Will Harrison, and Scoot McNairy in supporting roles. The film's title is derived from the chorus of Dylan's 1965 single "Like a Rolling Stone".

A Complete Unknown premiered at the Dolby Theatre in Los Angeles on December 10, 2024, and was released in the United States by Searchlight Pictures on December 25, 2024. The film has grossed $127.3 million worldwide and received generally positive reviews from critics. It was named one of the top-10 films of 2024 by the American Film Institute and the National Board of Review, the latter of which also awarded Fanning Best Supporting Actress.

The film earned eight nominations at the 97th Academy Awards, including Best Picture, Best Director, Best Actor (Chalamet), Best Supporting Actor (Norton), and Best Supporting Actress (Barbaro). It also received three nominations at the 82nd Golden Globe Awards (including Best Motion Picture – Drama), four at the 31st Screen Actors Guild Awards (winning Best Actor for Chalamet), and six at the British Academy Film Awards (including Best Film).