USS Shackle (ARS-9) was a Diver-class rescue and salvage ship commissioned by the U.S. Navy for service in World War II.

Shackle (ARS-9) was laid down on 26 October 1942 by the Basalt Rock Company in Napa, California; launched on 1 April 1943; sponsored by Mrs. Walker Cochran; and commissioned on 5 February 1944.

Brief duties at Eniwetok, Guam, and Saipan followed; and, in late January 1945, she commenced preparations for the assault on Iwo Jima.

At the end of the month, she returned to Buckner Bay, where, on 12 August, she witnessed the torpedoing of Pennsylvania and immediately commenced salvage work on the damaged battleship.

[1] Shackle (ARS-9) earned three battle stars during World War II: Her crew was eligible for the following medals: This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.