Wilhelm Büsing (born 2 March 1921) is a former German equestrian who competed at the 1952 Summer Olympics in Helsinki, where he won a silver medal in team eventing and a bronze medal in the individual tournament.
He also won a silver medal in team eventing at the 1954 European Championships.
A veterinarian by trade, he was also present at the 1956, 1960, and 1964 Summer Olympics as a coach and trainer.
In addition to his veterinary practice, he also worked as horse breeder.