HMCS Ottawa - H31

HMCS Ottawa H-31 was the second of four RCN ships to bear the name "Ottawa". Originally the Royal Navy G-class destroyer HMS Griffin, completed in 1936, she was commissioned in the Royal Canadian Navy as HMCS Griffin on 20 March 1943 and renamed HMCS Ottawa on 10 April 1943.

She served in the North Atlantic on anti-submarine escort duties and participated in the invasion of France with Escort Group 11. Following patrols in the English Channel and the Bay of Biscay, she helped destroy three German submarines.
She returned to Canada for refit in October of 1944 following a collision with HMCS Stratford, but never returned to duty and was paid off on 1 November 1945 and broken up in 1946.

Reference Links:
Government of Canada - HMCS Ottawa
For Posterity's Sake - HMCS Ottawa