John Robert "J. R." Celski (, born July 17, 1990) is an American short track speed skater, three-time Olympian, and three-time medalist in the Winter Olympics. Celski has held a total of 5 combined Short Track World and Junior World Records throughout his career including the 500m and 5000m relay World Records as well as the 500m, 1000m and 3000m relay Junior World Records. Celski was a part of the team that broke and currently holds the World Record in the 5000m Relay established in Shanghai, China on 12 November 2017.
