Union Cemetery is a 19 hectares urban cemetery in Calgary, Alberta, Canada, containing about 21,000 graves. It is located in the city's southeast in the predominantly industrial district of Manchester, and is the burial place for many of the city's earliest pioneers and settlers, as well as over 150 Commonwealth burials from the First and Second World Wars. Along with Burnsland Cemetery, St. Mary's Cemetery, Chevra Kadisha (Jewish) Cemetery, and the Chinese Cemetery, Union Cemetery is recognized by Heritage Calgary as a culturally significant historical landscape, and every summer the city offers guided walking tours through the cemetery district.