Sean Alvarez (born July 14, 1971) is an American retired mixed martial artist and grappler.
At the same year he made debut in RINGS and held wins over Willie Peters and Wataru Sakata.
After defeating Nader Ghaith, Brad Anderson, Simon Siasi he met Ricco Rodriguez in final match and loss by decision and won a silver medal.
He defeated Garth Taylor, Ricco Rodriguez and Luis Roberto Duarte and loss to Mark Kerr and again won a silver medal.
At 2000 ADCC World Championships Alvarez defeated Carlos Barreto, Ricco Rodriguez and Tito Ortiz and again loss to Mark Kerr in final match at absolute weight category and third time won a silver medal.