Robert Walter Mattick (May 30, 1933 – December 23, 2018) was an American basketball player. He played collegiately at Oklahoma A&M University (now Oklahoma State) and was named a second team All-American in 1954. Following the completion of his college career, Mattick was drafted by the Milwaukee Hawks in the 1954 NBA draft. However, he never played in the NBA, instead opting for the Phillips 66ers of the Amateur Athletic Union.