Betty Rosenquest Pratt (April 15, 1925 – January 31, 2016) was an American amateur tennis player who competed in the 1940s, 1950s and 1960s. Pratt was a student at Florida's Rollins College where she played collegiate tennis, graduating in 1947. She was ranked in the Top Ten in the U.S. in 1951 (ranked number eight), 1954 (number five) and 1956 (number five). At the Wimbledon Championships, Pratt was a semifinalist in both singles (1954), losing to eventual winner Maureen Connolly, and doubles (1951). At the U.S. Nationals, she was a doubles finalist and singles semifinalist in 1956.