Marguerite "Meta" Claudia Brevoort (November 8, 1825 – December 19, 1876) was an American mountain climber and pioneer in alpine history, known for her many first ascents and as a trailblazer in winter mountaineering.
In the Haut Dauphiné region, the highest peak of the Grande Ruine, the 3,765-meter-high Pointe Brevoort, was named after her.