The American football player known for his "Hail Mary" passes is Aaron Rodgers. He is renowned for his ability to execute long, high-risk throws to receivers in desperate situations, often at the end of games. The term "Hail Mary" specifically refers to a pass thrown with little likelihood of success but is often used as a last resort. Rodgers' remarkable arm strength and accuracy have made him famous for these types of plays, contributing to his team's victories and his status as a top quarterback.