Olivia Baker (born June 12, 1996) is an American middle-distance runner who specializes in the 800 meters.

In 2013, she became the first to win four events the same year at the New Jersey Meet of Champions, capturing state titles in the 100, 200, 400, and anchoring the 4x400.

She was a two-time New Jersey Gatorade Girls Track and Field Athlete of the Year.

[2] Baker ran at Stanford and was a 11-Time All-American, the 2016 Pac-12 400 champion, and the 2016 West Region Track Athlete of Year.

Baker runs for the Atlanta Track Club where she also works as the coordinator for marketing and membership engagement.