USS Etamin (AK-93) was the Liberty ship (EC2) Isaac Babbitt constructed for the US Maritime Commission (MARCOM) in 1943, for World War II service at a cost of $959,509.

After acquisition by the US Navy, the ship was named Etamin, after the brightest star in the constellation Draco and manned by a US Coast Guard crew.

As a Crater-class cargo ship, she served the military in the Pacific Ocean by providing food and material until she was torpedoed and put out of service.

[6] The ship was one of five Navy manned Liberties assigned 8 December 1943 to the Southwest Pacific Area for service to meet Army requirements.

The ship, no longer self-propelled because of the torpedo damage, was designated as an unclassified miscellaneous auxiliary (IX) and placed in service as Etamin (IX-173) on 12 August 1944 continuing to issue stores to the fleet while under tow.