Sonic the Fighters, also known as Sonic Championship on arcade versions outside Japan, is a fighting game developed by Sega AM2. First released in 1996 in arcades on Sega's Model 2 arcade system, Sonic the Fighters pits players in one-on-one battles with a roster of characters from the Sonic the Hedgehog series.

Sega AM Research & Development No. 2, previously known as SEGA-AM2 Co., Ltd., is a video game development team within the Japanese multinational video game developer Sega. Yu Suzuki, who had previously developed arcade games for Sega including Hang-On and Out Run, was the first manager of the department.