Leanid Karneyenka (, born August 20, 1987) is a Belarusian cross country skier who has competed since 2005. He became the first Belarusian to win a medal at the FIS Nordic World Ski Championships by winning a silver medal in the men's 15 km. This he achieved at the 2007 World Championships without any prior World Cup experience and with a previous best of 16th from the World Junior Championships in 2006. On the FIS distance ranking, he was placed 647th. However, the low ranking gave him an early start position in the 15 km freestyle, which helped as the late starters had to go through snowy tracks while Karneyenka avoided the snow. Karneyenka was described as "completely unknown" by several media sources, and the feat described as "sensational".