USS Constant (AM-86) was an Adroit-class minesweeper of the United States Navy.

Laid down on 21 February 1942 by the Commercial Iron Works, Portland, Oregon, and launched on 9 May 1942, the ship was commissioned on 21 September 1942.

From 20 December 1942 to 4 March 1943 Constant escorted convoys between San Francisco, California, and Pearl Harbor.

She sailed from Pearl Harbor 8 March for Espiritu Santo, arriving 25 March for local escort duty, operating from Espiritu Santo and Noumea in support of the Guadalcanal operation.

On 3 September 1943 she arrived at Tulagi and remained in the Solomons on inter-island escort and minesweeping duty with occasional convoy voyages to Nouméa and Espiritu Santo until 3 April 1944, when she steamed to Auckland, New Zealand, for a brief overhaul.