Lionel James Sanders (born February 22, 1988) is a Canadian professional triathlete and the winner of the 2017 ITU Long Distance Triathlon World Championships. In 2017 and 2021, he also placed second at the Ironman World Championship. In 2014 he placed fourth in the 2014 Ironman 70.3 World Championship held in Mont-Tremblant, Quebec. Sanders's first professional race was in September 2013 at the Muskoka Ironman 70.3, where he took 1st place over Andreas Raelert.