Metamoris is a defunct submission grappling and Brazilian jiu-jitsu promotion, founded by Ralek Gracie, and executive producer Eddie Marquez that organized events in Los Angeles, California. Live events of Metamoris were broadcast via internet pay-per-view around the world and via premium TV at Canal Combate in Brazil.

Regarded as a pioneer in professional submission grappling, the promotion had a series of difficulties leading to its closure, including mismanagement of funds, non-payment of athletes, objectionable comments made by Ralek Gracie, and resulting backlash.

The athletes compete in 20 minute, submission-only, gi or no-gi matches. There are no points given and if there is no submission, a draw is declared.

Metamoris I was held 2012-10-14.

Metamoris II was held 2013-06-09.

Metamoris III was held 2014-03-29. Executive Producer Ralek Gracie & Eddie Marquez

Metamoris IV was held 2014-08-09.

Metamoris V was held 2014-11-22.