Marat Grigorian is an Armenian-Belgian kickboxer currently signed to ONE Championship, where he competes in the featherweight division. Grigorian has previously competed for Glory and is a former Glory Lightweight Champion. He is famous for his technical aggressive fighting style and knockout power. Combat Press ranks him as the #2 lightweight and #4 pound-for-pound kickboxer in the world. As of October 12, 2023, he is ranked #2 in the ONE Featherweight Kickboxing rankings.

Glory, formerly ‘Glory World Series’ is an international combat sports league based in the United Kingdom. It is owned by Pierre Andurand, Yao Capital, Scott Rudmann and other investors.