USS Euryale (AS-22) was built as the Hawaiian Merchant by the Federal Shipbuilding and Drydock Company in Kearny, New Jersey for the Matson Navigation Company. Hawaiian Merchant was launched 12 April 1941, minutes after sister ship Hawaiian Shipper, and was completed April 1941. Matson intended the ship to join Hawaiian Planter and Hawaiian Shipper in the U.S. Pacific Coast—Australia route. The ship was under United States Army Transportation Corps charter when the United States went to war and came under the control of the War Shipping Administration which allocated the ship to the Army's continued charter until the ship was purchased 15 April 1943 by the United States Navy and commissioned 2 December 1943 as USS Euryale (AS-22), serving as a submarine tender through the war. Euryale was