Dallas Seavey (born March 4, 1987) is an American dog musher, one of only two mushers to win the Iditarod Trail Sled Dog Race across the U.S. state of Alaska five times: in 2012, 2014, 2015, 2016, and 2021. In 2011, Seavey competed in and won the Yukon Quest sled dog race. In 2018 and 2019, Seavey also competed in Europe's longest sled dog race, Norway's Finnmarkslopet. Seavey's grandfather, Dan Seavey, competed in the first two Iditarod sled dog races in 1973 and 1974, as well as the 1997 and 2012 races. His father, Mitch Seavey, has also competed in multiple Iditarods, winning in 2004, 2013 and 2017.
