USS Rescuer (ARS-18) was a Rescuer-class rescue and salvage ship commissioned by the U.S. Navy during World War II.

Rescuer (ARS-18) was built in 1904 as tug Casper by United Engine Works, and acquired for the Navy 6 February 1942 by the Port Director, San Pedro, California.

Assigned to the 13th Naval District on 7 February 1942, Rescuer underwent conversion at Seattle, Washington, then headed north to the waters of the Territory of Alaska, where she served during her brief naval career.

On 31 December 1942, while engaged in salvaging the stranded Soviet cargo ship SS Turksib near Scotch Cap (54°24′15″N 164°47′30″W / 54.40417°N 164.79167°W / 54.40417; -164.79167 (Scotch Cap)) on the southwest corner of Unimak Island in the Aleutian Islands, Rescuer was carried on to the beach in an 80-mph (129-km/h) gale, badly holed, and wrecked.

This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.