Robert Nelson Hooper (May 30, 1922 – March 17, 1980) was a Canadian-born pitcher in Major League Baseball from 1950 to 1955.

As a player, he threw and batted right-handed, stood 5'11" (180 cm) tall and weighed 195 pounds (88 kg).

Continuing his "against the grain" career, in 1952, with the A's putting up what would be their final over-.500 season in their Philadelphia history, Hooper won only eight games, losing 15.

He was traded to the pennant-contending Cleveland Indians that December 19, and became strictly a relief pitcher, appearing in 43 games in 1953 and only 17 contests in 1954.

He was a scout for the New York Mets in the early 1960s, and became a physical education teacher in the New Brunswick, New Jersey, public schools, retiring in 1979.