The Lieutenant Governor of Ontario (, in French: Lieutenant-gouverneur (if male) or Lieutenante-gouverneure (if female) de l'Ontario) is the viceregal representative in Ontario of the , who operates distinctly within the province but is also shared equally with the ten other jurisdictions of Canada, as well as the other Commonwealth realms and any subdivisions thereof, and resides predominantly in oldest realm, the United Kingdom. The Lieutenant Governor of Ontario is appointed in the same manner as the other provincial viceroys in Canada and is similarly tasked with carrying out most of the monarch's constitutional and ceremonial duties. The current Lieutenant Governor of Ontario is Elizabeth Dowdeswell.