Martin William Liquori (born September 11, 1949) is a retired American middle distance athlete. Liquori rose to fame when he became the third American high schooler to break the four-minute mile by running a 3:59.8 in 1967, three years after Jim Ryun first did it. He grew up in Cedar Grove, New Jersey and attended Essex Catholic High School. After high school, Liquori enrolled at Villanova University. There he was coached by Jumbo Elliott. On May 16, 1971, Liquori lowered his personal best to 3:54.6 in the Dream Mile in Philadelphia and beat Ryun by a few steps.