Alexandra Johnson (born April 3, 1989) is an American rock climber who has made numerous first female ascents, including Clear Blue Skies V12 (8A+) in Colorado, and Book of Nightmares V12 (8A+) and Lethal Design V12 (8A+) in Red Rocks. Her highest rated send, as of 2022, was “The Swarm” V14 (8B+) in Bishop. In 2009, she won the overall American Bouldering Series, and has twice won individual stages in the annual Bouldering World Cup series.