Garrett Mack (born or 1990) is an American college football coach. He is the defensive line coach for Duquesne University, a position he has held since 2024. He was the head football coach for Notre Dame College from 2022 until 2023 when the school announced it was closing. He coached for Baldwin Wallace, Fairview High School, Holy Name High School, Oberlin High School, and Oberlin.