Sacha Noam Baron Cohen ( SA-shə; born 13 October 1971) is an English comedian, actor and performance artist. Often described as one of the most preeminent comedians of his generation, he's received various accolades throughout his career, including three Golden Globe Awards, two BAFTA TV Awards, a Screen Actors Guild Award and a Writers Guild of America Award in addition to nominations for three Academy Awards and six Primetime Emmy Awards. He's best known for his creation and portrayal of the fictional satirical characters Ali G, Borat Sagdiyev, Brüno Gehard, and Admiral General Haffaz Aladeen.

Beginning his career in television, Baron Cohen was named Best Newcomer at the 1999 British Comedy Awards for The 11 O'Clock Show. He created and starred as his character Ali G in Da Ali G Show (2000–2004), receiving two BAFTA Awards. His next television project, Who Is America? (2018) for Showtime, saw him nominated for a Golden Globe Award for Best Actor – Television Series Musical or Comedy. In 2019, he portrayed Eli Cohen in the limited series The Spy for OCS and Netflix, for which he received a nomination for the Golden Globe Award for Best Actor – Miniseries or Television Film.

Baron Cohen has produced or performed in comedic films, such as Ali G Indahouse (2002), Borat (2006) and its sequel Borat Subsequent Moviefilm (2020), Talladega Nights: The Ballad of Ricky Bobby (2006), Brüno (2009), and The Dictator (2012). He has also appeared in dramatic films including Sweeney Todd: The Demon Barber of Fleet Street (2007), Hugo (2011), Les Misérables (2012), and The Trial of the Chicago 7 (2020). In 2016, he starred in Grimsby and co-starred in Alice Through the Looking Glass. His voice acting roles include King Julien XIII in the Madagascar film series (2005–2012) and Uncle Ugo in Luca (2021).

Baron Cohen has two nominations for the Academy Award for Best Adapted Screenplay, and six Golden Globe Award nominations, resulting in three wins; two for Best Actor in a Motion Picture – Musical or Comedy for his work on Borat and its sequel, and he also won the award for Best Motion Picture – Musical or Comedy as producer of the latter. In 2021, he received Academy Award, Golden Globe Award, and Screen Actors Guild Award nominations for his performance as Abbot "Abbie" Hoffman in The Trial of the Chicago 7. He has been a member of the Academy of Motion Picture Arts and Sciences in the Actors Branch since 2008.