Britannia is an affluent residential neighbourhood in the southwest 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.

It is represented in the Calgary City Council by the Ward 11 councillors.

A proportion of 19.3% of the buildings were condominiums or apartments, and 19.3% of the housing was used for renting.