Klemtu is an unincorporated community on Swindle Island in the coastal fjords of British Columbia, Canada. It is located on Kitasoo Indian Reserve No. 1.
Klemtu is the home of the Kitasoo tribe of Tsimshians, originally from Kitasu Bay, and the Xai'xais of Kynoch Inlet,[1] extends eastward from Queen Charlotte Sound, approximately at . It is adjacent to the Fiordland Conservancy. These two tribes live together as, and are jointly governed by, the Kitasoo/Xai'xais Nation. Traditional languages spoken at Klemtu are the southern dialect of the Tsimshian language, called Southern Tsimshian, and Xaixais, a dialect of the Heiltsuk language. In religious affiliation, the community is dominated by the United Church of Canada.
The government of the Kitasoo/Xai'xais Nation is a member government of the Oweekeno-Kitasoo-Nuxalk Tribal Council.
The population of Klemtu in 1983 was 269. the population of Klemtu was 505.
An alternate older name for Klemtu is Kitasoo. it was also known as China Hat due to the shape of Cone Island, which protects it from the open water. The name Klemtu is from the Coast Tsimshian language "Klemdoo-oolk," meaning "impassable".