McKayla Rose Maroney (born December 9, 1995) is an American retired artistic gymnast. She was a member of the American women's gymnastics team dubbed the Fierce Five at the 2012 Summer Olympics, where she won a gold medal in the team and an individual silver medal in the vault event. Maroney was also a member of the gold-winning American team at the 2011 World Championships, where she won gold medals in the team and vault competitions. She defended her World title and won the gold medal on vault at the 2013 World Championships, becoming the first U.S. female gymnast to defend a World Championship vault title.

A photograph of her with a "not impressed" expression, taken after winning silver in the 2012 Olympics, became an Internet meme. In 2016, she retired from competitive gymnastics.