USS Beagle (IX-112), was an Armadillo class tanker designated an unclassified miscellaneous vessel.

She was the second ship of the United States Navy to be named for the beagle, a breed of small, short-coated hunting hound.

1901, as the Type T1 tanker David Rittenhouse, by California Shipbuilding Corporation, Terminal Island, Los Angeles, California; launched on 29 October 1943; sponsored by Mrs. Victor Dalton; renamed Beagle and designated IX-111 on 27 October 1943; delivered to the Navy 20 November 1943, and commissioned the same day.

Between 13 October and 9 November, Beagle operated in the vicinity of Leyte providing support for the invasion of that island.

After that operation, Beagle resumed her more routine fuel supply missions between bases in the Pacific.