HMS Ursa was a U-class destroyer of the Royal Navy that saw service during the Second World War. She was later converted into a Type 15 fast anti-submarine frigate, with the new pennant number F200.

The U and V class was a class of sixteen destroyers of the Royal Navy launched in 1942–1943. They were constructed in two flotillas, each with names beginning with "U-" or "V-". The hull was nearly id