Domata Uluaifaasau Peko Sr is an American-Samoan professional football coach and former nose tackle who is currently the defensive line coach for the Pittsburgh Steelers of the National Football League (NFL). Peko was born in Los Angeles, California and grew up in Pago Pago, American Samoa. He played college football at Michigan State and was drafted by the Cincinnati Bengals in the fourth round of the 2006 NFL draft.