Frankie Callahan, born Samuel Holtzman February 10, 1895 in Brooklyn, New York, was an American boxer. He was undefeated in his first 5 fights. This lightweight boxer fought a total of 172 bouts, winning 104 and with 24 knockouts. He lost 42 bouts and had 25 draws. He died of pneumonia on September 5, 1927 at age 32.