USS Ptarmigan (AM-376) 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.

She was the only U.S. Navy ship named for the ptarmigan, a grouse with feathered feet, found in northern regions.

With Redstart (AM-378) she patrolled the Korean coast along Hŭngnam, Chaho, Songjin, and Wonsan to prevent enemy sampans from laying mines.

Leaving Sasebo in May 1952 and arriving Long Beach, California, in June, she received new guns and radar.

Sailing from Long Beach in July 1954 to join the 7th Fleet, she patrolled the Korean coast, and in February 1955 assisted in the evacuation of the Tachen Islands during the First Taiwan Strait Crisis.