Fredrik Riseth (born 15 September 1995) is a Norwegian former cross-country skier.

His only outing in the 2015 Junior World Championships was the sprint, where he won the gold medal.

He won his second gold medal at the 2017 Junior World Championships, this time in the U23 age class.

He repeated this placement in January 2018 in Dresden, and broke the top-ten for the first time in March 2018 in Drammen, where he finished seventh, again in the sprint.

[1] After he participated in only one World Cup competition during the 2019–20 season, Riseth retired from international skiing on 1 May 2020.