Michael Allan Patton (born January 27, 1968) is an American singer, producer, film composer and voice actor, best known as the lead vocalist of the alternative metal band Faith No More. Noted for his vocal proficiency, diverse singing techniques, wide range of projects, style-transcending influences, eccentric public image and contempt for the music industry, Patton has earned critical praise and influenced many contemporary singers. Patton is also co-founder and lead vocalist of Mr. Bungle, and has played with Tomahawk, Fantômas, Moonchild Trio, Kaada/Patton, Dead Cross, Lovage, Mondo Cane, and Peeping Tom. Consistent collaborators through his varied career include avant-garde jazz saxophonist John Zorn, hip hop producer Dan the Automator and classical violinist Eyvind Kang.

He has worked as a producer or co-producer with artists such as Merzbow, The Dillinger Escape Plan, Sepultura, Melvins, Melt-Banana, and Kool Keith. He co-founded Ipecac Recordings with Greg Werckman in 1999, and has run the label since.

Patton is stated as having a vocal range of six octaves. He saw his largest success with the group Faith No More; although they scored one US hit, they scored three UK top 20 singles. Patton is an outspoken, even mocking, critic of the mainstream music industry and has been a champion for non-mainstream music that he says has "fallen through the cracks."

Patton has been cited as an influence by members of Coheed and Cambria, Deftones, Five Finger Death Punch, Hoobastank, Incubus, Killswitch Engage, Korn, Limp Bizkit, Queens of the Stone Age, System of a Down, and Slipknot.