Justice Annex, Government building in Ottawa, Canada

The Justice Annex was a government building in Ottawa situated between the Supreme Court of Canada and Parliament Hill. The structure featured plain architectural elements and served different administrative purposes throughout its existence.

The building was constructed between 1942 and 1943 to provide accommodation for Royal Canadian Mounted Police personnel during World War II. After the war it transitioned to house different government departments and agencies.

The building was nicknamed the "Little Orphan of Parliament Hill", a reference to its position between the Supreme Court and Parliament Hill. It later housed C.D. Howe's Department of Munitions and Supply before being transferred to the Justice Department, which gave it the name Justice Annex.

The site is no longer accessible as the building was demolished in 2012. Visitors can learn about Ottawa's history at nearby museums and administrative buildings in the capital.

The Justice Annex was nicknamed the "Little Orphan of Parliament Hill", a reference to its position among the capital's grand government buildings. It was the last of the many temporary wartime offices erected to house a fast-growing civil service, and it stood until its demolition in spring 2012.