Britannia is a residential neighbourhood in the south-west quadrant of Calgary, Alberta, Canada. It is bounded by Elbow Drive to the east, 50 Avenue S to the south, Elbow River and Riverdale Park to the west and Britannia Drive to the north. The area was annexed to the City of Calgary in 1910, and Britannia was established in 1956. Most of the development took place in the late 1950s. It is represented in the Calgary City Council by Ward 11 Alderman Brian Pincott.
In 2006 the neighbourhood had a population of 784. Residents in this community had a median household income of $120,387 in 2000, and there were 7.9% low income residents living in the neighborhood. As of 2000, 16.7% of the residents were immigrants. A proportion of 19.3% of the buildings were condominiums or apartments, and 19.3% of the housing was used for renting.