Princess Louisa Inlet[1] (swiwelat in she shashishalhem[2]) is a fjord on British Columbia’s Sunshine Coast and within the swiya (world, "Territory") of the shíshálh Nation.

[4]: 52  In 1860, Captain George Richards surveyed and mapped Jervis and Princess Louisa Inlets, naming them and surrounding features.

In the same year, Commander Richard Charles Mayne explored the valley at the head of the inlet hoping that it would lead to the interior of British Columbia.

[4]: 54 In 1919, James F. "Mac" MacDonald purchased 45 acres (18 ha) of land along the inlet and donated it to the Princess Louisa International Society in 1953.

Hamilton, an American aviation executive, did buy all the land surrounding Princess Louisa Inlet with the intent on developing it with a series of themed luxury resorts to cater to visiting yachtsmen and Hollywood celebrities.

[2] The inlet's English name may commemorate the Princess Louise, the fourth daughter of Queen Victoria,[4]: 54  whose husband was the Marquess of Lorne, Governor General of Canada.

The area is a popular destination for boaters and can also be accessed by float plane from various locations around the Strait of Georgia and water taxi from Earls Cove.