Roberto Rexach Benítez, American-Puerto Rican academic and politician, 10th President of the Senate of Puerto Rico (b. 1929)
Roberto Nicolás Rexach Benítez (December 18, 1929 – April 4, 2012) also known as his stage name Bobby, was a Puerto Rican politician, and former Senator and Representative. Rexach Benítez served as the tenth President of the Senate of Puerto Rico from 1993 to 1996. He also served as a member of the Puerto Rico House of Representatives from 1973 to 1976, under the Popular Democratic Party (PPD) and as a member of the Senate (1985–1998) under the pro-statehood New Progressive Party (PNP).

Prior to his legislative career, he was the first director of the University of Puerto Rico at Arecibo (1967–1970) and University of Puerto Rico at Humacao (1961–1967).