Colonel J.L. Potter BStJ, MD (16 April 1877 - ) was the 11th Canadian Surgeon General.
Potter joined the Non-Permanent Army Militia Medical Corps in 1907 as a Lieutenant and the following year, transferred into the permanent force in the rank of Captain.
During World War I, he was Taken on Strength in the rank of Colonel in 1918, and assumed command of No. 11 Stationary Hospital, which was a newly assembled unit from Vancouver, British Columbia. That same year, the unit was sent overseas to Vladivostok, Russia. Colonel Potter’s wife, Nursing Matron Grace Elrida Potter was also sent at the same time to Vladivostok as part of the Siberian Expedition; in fact, she was the sole woman on the expedition.
Shortly after arriving in Vladivostok, he was appointed Assistant Director of Medical Services (Army) and sent to Siberia, remaining there until 1919.
He was appointed Director General of Medical Services (Army) (later known as Surgeon General) in 1936.