Government House of Nova Scotia is the official residence of the lieutenant governor of Nova Scotia, as well as that in Halifax of the Canadian monarch. It stands in the provincial capital at 1451 Barrington Street; unlike other provincial Government Houses in Canada, this gives Nova Scotia's royal residence a prominent urban setting, though it is still surrounded by gardens.

The lieutenant governor of Nova Scotia is the representative in Nova Scotia of the monarch, 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 his oldest realm, the United Kingdom. The lieutenant governor of Nova Scotia 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 present, and 33rd lieutenant governor of Nova Scotia is Arthur Joseph LeBlanc, who has served in the role since 28 June 2017.