The commissioner of Yukon is the representative of the Government of Canada in the Canadian federal territory of Yukon. The commissioner is appointed by the federal government and, in contrast to the governor general of Canada or the lieutenant governors of the Canadian provinces, is not a viceroy and therefore not a direct representative of the Canadian monarch in the territory eo ipso.

Yukon is the smallest and westernmost of Canada's three territories. It is the third-least populated province or territory in Canada, with a population of 45,148 as of 2023. However, Whitehorse, the territorial capital, is the largest settlement in any of the three territories.