Robert Martin Johnson (born November 12, 1948 in Farmington, Michigan) is a retired professional ice hockey goaltender who played 24 games in the National Hockey League. He played with the Pittsburgh Penguins and St. Louis Blues. His son is Penguins goaltender Brent Johnson.
Johnson spent most of his career in the minor pros. He played 12 games each for the St. Louis Blues and the Pittsburgh Penguins in the NHL and played 18 games for the Cleveland Crusaders and 24 games for the Denver Spurs-Ottawa Civics franchise in the WHA.
He retired in 1977.