Lennard "Len" Väljas (born 21 November 1988) is a Canadian former cross-country skier. He was born in Toronto, and is of Estonian descent. He is the younger brother of Canadian beach volleyball Olympian Kristina May. Väljas competed at the sprint event at the World Ski Championships 2011 in Oslo where he placed 15th. Väljas achieved his first podium finish on the World Cup on March 7, 2012, in a Sprint Classic races in Drammen, Norway. He announced his retirement from cross-country skiing in March 2019.