Kamil Wiktor Stoch (Polish pronunciation: ; born 25 May 1987) is a Polish ski jumper. He is one of the most successful ski jumpers from Poland, as well as in the history of the sport, having won the World Cup overall title; two consecutive Four Hills Tournaments; two individual gold medals at the Winter Olympics; and both individual and team gold at the World Championships. He was voted Polish Sportspersonality of the Year in 2014 and 2017. Stoch is only the second athlete in history, after Sven Hannawald, to win the grand slam of all four events in a single Four Hills Tournament.
Kamil Stoch was born in Zakopane, Poland, to Krystyna and Bronisław Stoch and raised in Ząb near Zakopane. He has two older sisters – Anna (born 1983) and Natalia (born 1985). In 2006 he graduated from the School of Sports Championships in Zakopane. In 2012 he graduated the University School of Physical Education in Krakow with master's degree in physical education (MPhEd). On 7 August 2010 he married Ewa Bilan.