The Hull-Ottawa fire of 1900 was a devastating fire in 1900 that destroyed much of Hull, Quebec, and large portions of Ottawa, Ontario.

Hull is the central business district and oldest neighbourhood of the city of Gatineau, Quebec, Canada. It is located on the west bank of the Gatineau River and the north shore of the Ottawa River, directly opposite Ottawa. As part of the Canadian National Capital Region, it contains offices for over 20,000 civil servants. It is named after Kingston upon Hull in England.