Herbert "Buddy" Behrens (born c. 1929) was an American tennis player in the 1940s and 1950s.
Behrens won the singles championship at the Cincinnati Masters in 1948. As a junior, he won both the singles and doubles titles in 1947 at the United States Junior Championships.
In 1947, he was ranked No. 1 in both the U.S. Junior Singles Rankings and in the U.S. Interscholastic Singles Rankings.
After graduating from Ft. Lauderdale High School in Florida, he attended Rollins College, graduating in 1951. In 1994 was enshrined in that school's Athletic Hall of Fame.