HMCS Stadacona was a commissioned patrol boat of the Royal Canadian Navy (RCN) that served in the First World War, and postwar until 1920.

[1][4] She was acquired by Aemilius Jarvis on behalf of the RCN in July 1915 along with the yacht Waterus from the New York shipbrokers Cox and Stevens for $155,000.

(The sales were blocked by the then-neutral US government, and prolific champion yachtsman Commodore Jarvis subsequently had to sneak the ships from the US to Canada.

[9] The vessel became flagship of the Canada's East Coast fleet based at Halifax under Vice Admiral Sir Charles Coke on 30 April 1916.

[14] Sold in 1924, Stadacona became the West Coast rum running depot ship Kuyakuzmt during Prohibition before being rebuilt in 1929 at Vancouver as the yacht Lady Stimson.