The Moose Jaw City Hall is home to the Moose Jaw City Council and is located at 228 Main Street North in Moose Jaw, Saskatchewan, Canada, and is designated as a municipal heritage property. The building was originally designed and built by the J. McDiarmid Company for the Government of Canada to house a post office, Royal Canadian Mounted Police station and other government offices. In 1965 the building was sold by the federal government to the City of Moose Jaw and converted into a city hall.