Ilia Grigoryevich Chernousov (; born 7 August 1986) is a Russian cross-country skier. He won bronze medals at the 2011 World Championships and 2014 Winter Olympics.
Chernousov's first World Cup victory was in the 4ÃÂ10 km relay in Switzerland in 2007. His best individual results came in the 30 km pursuit in 2011: a third place at the world championship and the first place at the world cup. At the FIS Nordic World Ski Championships 2007 in Sapporo, he finished 31st in the 15 km + 15 km double pursuit event.
At the 2014 Olympics Chernousov finished third in the 50 km freestyle. He was promoted to the first placed after the ban of gold and silver medalists, Alexander Legkov and Maxim Vylegzhanin. This decision was reversed in 2018. In the 30 km skiathlon Chernousov placed fifth.
In June 2014 Chernousov married the Swiss biathlete and fellow Olympic medalist Selina Gasparin.
All results are sourced from the International Ski Federation (FIS).