Rainey Blackwell Cawthon (October 30, 1907 – April 11, 1991) was an American football player and coach for the Florida Gators of the University of Florida. Cawthon was a member of Florida's "Phantom Four" backfield with Clyde Crabtree, Carl Brumbaugh, and Royce Goodbread in 1928 which led the nation with 336 points scored. He was also captain of the 1929 Florida team, and selected second-team for the composite All-Southern that year. He was inducted into the University of Florida Athletic Hall of Fame as a "Gator Great." Cawthon was also active in the affairs of Florida State University, and was elected to the FSU Hall of Fame in 1987.