USS Coolbaugh was an American Buckley-class destroyer escort. Laid down at a Philadelphia shipyard on 22 February 1943, she was launched on 29 May and commissioned on 15 October of the same year. During her first months of service, the destroyer escorted merchant ships in the Pacific Ocean. In early 1944, she was sent on patrol duty to the Solomon Islands. On 10 October 1944, Coolbaugh joined the Seventh Fleet and participated in attacks on Leyte Island as part of the operation to liberate the Philippines. On 25 October, the ship's crew rescued 91 crewmen who had been thrown overboard from the aircraft carrier USS Suwannee following a kamikaze attack. For the remainder of the war, Coolbaugh performed escort duties in various parts of the Pacific Ocean. On 4 September 1945, she arrived in San Francisco for repairs. On 25 January 1946, Coolbaugh participated in providing electricity to Block Island, where a fire had damaged the power plant. The destroyer served as a training ship until 26 May 1960, after which she was decommissioned and put in reserve. On 1 July 1972, Coolbaugh was sold for scrap.

USS Coolbaugh was introduced in Update 2.37 "Seek & Destroy". She has a large number of anti-aircraft guns, as well as rapid-fire 127 mm guns with a wide arsenal of shells. While the main calibre guns are advantageous, their small number means the Coolbaugh is better suited to a support role, capable of competing with some proper destroyers. However, her speed is pretty limited.