Sonic the Hedgehog 2 is a 2022 action-adventure comedy film based on the video game series Sonic the Hedgehog published by Sega. The sequel to Sonic the Hedgehog (2020), it was directed by Jeff Fowler from a screenplay by Pat Casey, Josh Miller, and John Whittington, based on a story by Casey and Miller. Ben Schwartz, James Marsden, Tika Sumpter, Colleen O'Shaughnessey, and Jim Carrey reprise their roles, with Idris Elba joining the cast. In the film, Sonic and Tails must find the Master Emerald before the villainous Dr. Robotnik (Eggman) and his partner Knuckles the Echidna.

Following the success of Sonic the Hedgehog (2020), Paramount Pictures announced the sequel in May 2020, with Fowler, Casey, Miller and the cast returning. Filming took place from March to June 2021 in Vancouver and Hawaii. The film draws inspiration from the video games Sonic the Hedgehog 2 (1992), Sonic the Hedgehog 3 (1994), and Sonic & Knuckles (1994).

Sonic the Hedgehog 2 was theatrically released in several markets on March 30, 2022, and in the United States on April 8, by Paramount Pictures and Sega Sammy Group. Like its predecessor, it set several box office records and received generally positive reviews from critics, who praised the performances and action sequences but criticized the screenplay and runtime. It grossed $405.4 million worldwide, becoming the highest-grossing video game film in the United States until The Super Mario Bros. Movie the following year. Sonic the Hedgehog 3 is scheduled for release in December 2024, while Knuckles, a spin-off series starring Elba, premiered on Paramount+ in April 2024.