USS Portent (AM-106) 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. Portent — a metal-hulled minesweeper — was named after the word "portent", something that foreshadows a coming event. In this case, it was an appropriate name since the Portent struck a mine and was sunk not long after her commissioning.