Mari Takahashi, host on the popular Youtube channel Smosh
Mari Apache (born Mariella Balbuena Torres), Mexican pro wrestler
Mari Youngblood, American singer/actress
Marianne "Mari" Steinbrecher, Brazilian volleyball player
Mari, Basque goddess, wife of Sugaar
Mari Yamashita, character from the manga "Inubaka: Crazy for Dogs"
Mari Jiwe McCabe, aka Vixen, DC Comics character.
Mari Illustrious Makinami, character in the anime "Rebuild of Evangelion"
Mari, Japanese form of Mary, pronounced ma-ree
Can be a nickname for Maristella