Austin Armacost (born March 28, 1988) is an American reality television personality who rose to fame in 2010 by becoming a cast member in the Logo reality television series The A-List: New York which followed the lives of six gay and bisexual men in New York City.

In 2015, he competed in the sixteenth series of Celebrity Big Brother, where he became runner-up. He re-entered the house in 2017 during the nineteenth series as an "All Star" in which he was the second to leave the house, placing fifteenth.