Enson "Yamato Damashii" Inoue (born April 15, 1967) is an American mixed martial arts fighter. He has a professional MMA record of 11-8-0 as of April 16, 2004. He is the brother of Egan Inoue. Though relatively unknown among today's MMA fanbase, Inoue holds a submission win (armbar) over former UFC Heavyweight Champion Randy Couture as featured in the documentary film Rites of Passage.

He has a notable win over Randy Couture and giving Frank Shamrock one of his toughest matches. Enson had an exhibition match in Mudo Spirit on September 16, 2007.

Enson and his brother was awarded a black belt in Brazilian Jiu-jitsu by John Lewis. He is also a former Shooto Heavyweight Champion.

Enson is famous for his "never quit" attitude which resulted in him losing consciousness via choke against Antonio Rodrigo Nogueira. Against Igor Vovchanchyn Enson had to be carried to his corner, from which his cornerman threw in the towel. Enson spent 4 months in hospital recovering from his injuries, which included swelling of the brain and a broken jaw. Enson never once tapped, or gave any verbal indication of quitting, giving birth to the phrase, "There's tough, and then there's Enson."

Enson also has an acting appearance in David Mamet's 2008 film, Redbelt, as mixed martial artist Taketa Morisaki.