Robert Michael Grotte (c. 1913 – 15 December 1964) was a New Zealand professional rugby league footballer who played in the 1930s.

Auckland born, Grotte came to St. George in 1935 and had a successful season, playing 12 first grade games.

In 1938 he moved to Auckland and played for Marist Old Boys.

[3] While at Marist he played 3 seasons with his brother William who was a forward.

Robert Grotte died on 15 December 1964, in Auckland and is buried at Waikumete Cemetery.