Gustaf Grönberger participant of 1906 Intercalated Games
Andreas Gustaf Grönberger (Stockholm Sweden, 12 June 1882 – Stockholm, 29 August 1972) was an athlete who won bronze medal at the 1906 Intercalated Games in tug of war.
He competed at the Tug war at the Games. There was direct elimination during the game. At first round Greece defeated Sweden, who later won at the round for the bronze medal against Austria