Robert Francis "Bobby" Wanzer, also known as "Hooks" Wanzer (June 4, 1921 – January 23, 2016) was an American basketball player and coach.

A 6'0" guard, Wanzer played collegiately at Seton Hall University. After leading Seton Hall to a 16-2 record as a sophomore, Wanzer enlisted in the U.S. Marine Corps. He made the All-Pacific Armed Forces all-star basketball team, and he participated in the occupation of Guam.

Wanzer was selected by the Rochester Royals in 1947. Royals star Bob Davies was a Seton Hall coach and steered the star guard to the NBL contender. Initially a reserve behind Al Cervi and Red Holzman, Wanzer later teamed with Davies to form a potent backcourt for the day. The Royals were very successful 1947-1954, and their smaller stars, like Wanzer, were considered their biggest assets. With Wanzer, Rochester won the 1950-51 National Basketball Association (NBA) title.

Wanzer played his entire career with the Royals, retiring from play after the end of the 1957 season. He was a five-time All-Star with the Royals, and in the 1951-52 season, Wanzer became the first player to ever shoot over 90% from the free throw line in a season. He was inducted into the Naismith Memorial Basketball Hall of Fame in 1987.

Wanzer would also coach the Royals as well. He was a player-coach for two years, and then (after the franchise moved to Cincinnati, Ohio) coached for another season. His 1957-58 Cincinnati Royals were an NBA contender, but injuries stopped the team short. When star Maurice Stokes was permanently injured, Wanzer moved on early the following NBA season.

He later coached St. John Fisher College in Pittsford, New York. On August 17, 2007, he was inducted into the United States Marine Corps Sports Hall of Fame. Wanzer died on January 23, 2016 at his home in Pittsford, New York.