Jadwin is a surname. Notable people with the surname include:
Cornelius Jadwin (1896–1982), American equestrian Cornelius C. Jadwin (1835–1913), American politician Edgar Jadwin (1865–1931), United States Army general
See also Jadwin, Missouri, is an unincorporated community in southern Dent County, Missouri, United States Jadwin Gymnasium, is a multi-purpose arena at Princeton University in Princeton, New Jersey