USS Tranquillity (AH-14) was a Haven-class hospital ship in the service of the United States Navy during World War II.

With a bed capacity of 802 and a complement of 568, Tranquillity was one of the first six fully air conditioned ships in the Navy.

Tranquillity got underway from Hampton Roads on 5 May 1945 for shakedown trials and assignment to the Pacific Fleet to provide hospital services, consultation, preventive medicine and casualty evacuation.

Tranquility began service as a base hospital at Ulithi and was dispatched on 3 August 1945 to the Palau Islands to receive the survivors from the USS Indianapolis (CA-35) and transport them to Guam.

On 15 July 1974, Tranquillity was sold for scrapping to Northern Metal Co., Division of North James River Associates for $58,300.00 (PD-X-395 dated 5 June 1947) Withdrawn from the Suisun Bay Reserve Fleet and delivered to Northern Metals, 5 August 1974 Tranquillity received one battle star for World War II service.