Mark Sweeten Wade (November 23, 1858 – 1929) was a medical doctor and noted historian of early British Columbia history. A doctor at the in the 1920s, he was able to interview many veterans of the province's early gold rush, including many of the more famous names in the history of the Cariboo Road, the Cariboo Gold Rush and the . He also wrote on medical legislation and hospital policy in the province of British Columbia as well as a biography of explorer Alexander Mackenzie. His works have served as an important source of biographical and historical detail by later historians.