USS Sway (AM-120) was an Auk-class minesweeper acquired by the United States Navy for the dangerous task of removing mines from minefields laid in the water to prevent ships from passing.

Sway was laid down on 18 November 1941 by John H. Mathis & Company, Camden, New Jersey; launched on 29 September 1942; sponsored by Mrs. W. W. Robinson; and commissioned on 20 July 1943.

The minesweeper stood out of Norfolk on 15 October as an escort for convoy UGS-21 en route to Algeria.

On one notable occasion the ship opened fire on PT-201 which was carrying General Clark in inspect the landings.

Sway stood out of Naples on 12 August with a convoy to participate in "Operation Dragoon", the invasion of southern France.

Sway departed the operating area on 6 October en route to Bizerte, via Corsica.

Sway arrived at Norfolk, Virginia on 19 January 1945 and remained there until late March being overhauled for duty in the Pacific.

On the last day of the month she joined a convoy as escort and sailed for Okinawa, arriving at Buckner Bay on 12 July.

She arrived there on 24 October and two days later began a sweep of the "Klondike" area of the East China Sea which lasted until 7 November.

The former Sway was purchased by the Mexican Navy on 16 February 1973 and renamed ARM Ignacio Altamirano (C80).

[citation needed] This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.