The Drill Hall at Cartier Square is a dedicated military training facility in Ottawa, Ontario, Canada. It has been a local landmark since its construction in 1879. The drill hall is 70 meters long and has two 43 meters tall mansard towers. The hall is located on the bank of the Rideau Canal just south of Laurier Avenue. The area to the west was once a large open field used for drilling, but today is the location of the Ottawa City Hall and courthouse.