Count Carl Gustaf Bonde af Björnö (28 April 1872 – 13 June 1957) was a Swedish Army officer, equerry and horse rider who competed at the 1912 and 1928 Olympics.

In 1912, he won the gold medal in the individual dressage competition with his horse Emperor.

Sixteen years later, he won the silver medal as a member of the Swedish team.

He also competed in the 1928 Olympic individual dressage competition with his horse Ingo and finished 19th.

Bonde's first wife, Blanche Dickson, inherited Tjolöholm Castle, and they lived there until their divorce in 1919.