Assuerio Silva (June 18, 1974 in Mossoro, Brazil) is a Brazilian mixed martial artist, having most recently competed in the Ultimate Fighting Championship and Pancrase. He became the Heavyweight King of Pancrase on May 30, 2007, defeating Tatsuya Mizuno.

Silva holds a professional fight record of 13-6-01, the majority of his wins coming via submission. He fought three times in Pride FC in 2001, winning twice. However, after signing a three-fight contract with UFC, he was less successful, losing all his fights to Tim Sylvia, Brandon Vera and Cheick Kongo.

His height is 5 ft 10 in and he weighs 241 pounds. In addition to training Muay Thai, he holds a black belt in Karate. Silva is also a Brown Belt in Jiu Jitsu. He fights out of Curitiba, Brazil with Total Punch Mixed Martial Arts Academy.

Silva bounced back from his latest loss to Cheick Kongo by becoming the King of Pancrase after a 2nd round TKO win over Tatsuya Mizuno. He won this vacated title at Pancrase Rising 6 last 30 May 2007. He was scheduled to defend the championship against the former champion, Kestutis Arbocius "Tiger", on 14 October 2007 at the Differ Ariake Arena in Tokyo, Japan, but Arbocius no-showed at the event. Shortly thereafter, Silva vacated the Championship to pursue a contract with the newly-formed Hardcore Fighting Championships in Canada. However, the organization folded before he was able to fight once under their banner.

Silva made his professional boxing debut on June 21, 2008 in his native Curitiba, Brazil, knocking out Adriano Vicente in 38 seconds of the 1st round.