Rupert's Land, or Prince Rupert's Land, is a territory in British North America, consisting mostly of the Hudson Bay drainage basin that is nominally owned by the Hudson's Bay Company for 200 years from 1670 to 1870, although numerous aboriginal groups live in the same territory and disputed the sovereignty of the area.

The area once known as Rupert's Land is now mainly a part of Canada, but a small portion is now in the United States of America.

It is named after Prince Rupert of the Rhine, a nephew of Charles I and the first Governor of the Hudson's Bay Company.

In December 1821, the HBC monopoly is extended from Rupert's Land to the Pacific coast.Areas once belonging to Rupert's Land include all of Manitoba, most of Saskatchewan, southern Alberta, southern Nunavut, northern parts of Ontario and Quebec, as well as parts of Minnesota and North Dakota and very small parts of Montana and South Dakota.