Frank Baker was an American professional baseball player who had a successful career in the 1970s. He played in the Major Leagues from 1970 to 1974. Baker was a right-handed batter and a right-handed fielder. He was known for his strong throwing arm and his ability to hit for power.

Baker began his career with the Oakland Athletics in 1970. He played in the minors for two years before making his major league debut in 1972. He hit .277 with 10 home runs in his first season with the A's. In 1973, Baker batted .263 with 18 home runs and 79 RBIs. He also had the best fielding percentage of any right fielder in the American League.

Baker continued his success in 1974, batting .280 with 18 home runs and 76 RBIs. He also led the league in outfield assists with 16. Baker was traded to the Montreal Expos in 1975, but he was unable to match his earlier success. He was released by the Expos in 1976 and retired from baseball.

Throughout his career, Baker was known for his power at the plate and his strong throwing arm. He was also a great fielder and finished his career with a .976 fielding percentage. Baker was an important part of the Oakland Athletics during his four-year tenure, and he was a key contributor to their success.