USS Arapaho (AT-68/ATF-68) was a Navajo-class fleet ocean tug which served the U.S. Navy during World War II with her towing services.

The tug conducted her shakedown training in the vicinity of Key West, Florida, and returned to Norfolk, Virginia, to prepare for a transatlantic voyage.

In mid-June, the tug moved south to search the Florida Strait for the submarine R-12 (SS-89), which had sunk as a result of battery explosions.

After fruitlessly seeking this ship from 18 to 23 June, Arapaho set sail on 25 June—apparently from Key West, Florida—with a barge in tow on her way to Panama.

From Funafuti, the tug steamed in company with aircraft carrier Independence (CVL-22), severely damaged in the Gilbert Islands operation by an aerial torpedo.

Over the next five months, the tug was based successively at Tarawa and Majuro, though she made numerous tows to other islands in the Gilbert, Marshall, and Ellice groups.

At that time, she put to sea towing auxiliary repair dock ARD-15 and covered lighter (self-propelled) YF-786 to Ulithi, Service Squadron (ServRon) 10's new advanced base, and, following her arrival at that atoll, worked in and out of its lagoon engaged in harbor and salvage duties.

After towing LST-278 to Guam in January 1945, Arapaho returned to Ulithi on the 23d and began a major overhaul of her main propulsion plant.

The tug remained active with the Argentine Navy until 10 January 1976 when she ran aground on an Antarctic reef and was declared a total loss.