Jacques Pierre Joseph Marie Misonne (11 December 1892 in Leuven, Flemish Brabant, Belgium – 25 September 1968 in Haut-Ittre, Walloon Brabant, Belgium) was a Belgian horse rider who competed in the 1920 Summer Olympics, in the 1924 Summer Olympics, and in the 1928 Summer Olympics.^[1][2]

In 1920, he and his horse Gaucho finished 17th in the individual eventing competition. They also participated in the individual jumping event and finished 25th.^[1]

Four years later, riding Torino, he finished fourth with the Belgian team in the team jumping competition after finishing 13th in the individual jumping event.^[1]

In 1928, on Keepsake, he was a member of the Belgian team which finished 14th in the team jumping competition after finishing 38th in the individual jumping event.^[1]