- Swimmer from United States (also known as USA) in Maryland who swims distance freestyle and got gold medal in 2012 Olympics before her sophomore year in high school.
- http://sportsillustrated.cnn.com/2012/olympics/2012/08/04/katie-ledecky-gold-medal.ap/index.html After gold medal in 800 meter free at London's 2012 Olympics.
- Technique tips from a blog, http://www.greenlightpt.co.uk/blog/10-photos-that-show-why-katie-ledecky-swims-faster-than-you
- Mike and Mike of ESPN talk to Katie Ledecky after the 2016 Olympics. http://www.espn.com/espnradio/play?id=17372619