Jonah Hill Feldstein (born December 20, 1983) is an American actor, comedian, screenwriter, producer and director. He is known for his comedic roles in films including Superbad (2007), Knocked Up (2007), 21 Jump Street (2012), This Is the End (2013), and 22 Jump Street (2014). For his performances in Moneyball (2011) and The Wolf of Wall Street (2013), he was nominated for the Academy Award for Best Supporting Actor.

Hill ranked 28th on Forbes magazine's list of highest-paid actors from June 2014 to June 2015, at $16 million. In 2020, he was found to have sworn on film more than any other actor. As a screenwriter, he contributed to the stories of 21 Jump Street, 22 Jump Street, Sausage Party and Why Him? In 2018, he starred in the Netflix dark comedy miniseries Maniac and made his directorial debut with the film Mid90s. He also wrote the screenplay for Mid90s.

Hill has provided voices for the animated films Horton Hears a Who! (2008), Megamind (2010), How to Train Your Dragon (2010–2019), The Lego Movie (2014), and The Lego Movie 2: The Second Part (2019).