The Royal Westminster Regiment is a Primary Reserve infantry regiment of the Canadian Army. It is currently part of the 3rd Canadian Division's 39 Canadian Brigade Group and is based in New Westminster, British Columbia, at The Armoury and at Colonel Roger Kenwood St. John, OMM, CD Armoury in Chilliwack, British Columbia.

New Westminster is a city in the Lower Mainland region of British Columbia, Canada, and a member municipality of the Metro Vancouver Regional District. It was founded by Major-General Richard Moody as the capital of the Colony of British Columbia in 1858 and continued in that role until the Mainland and Island colonies were merged in 1866. It was the British Columbia Mainland's largest city from that year until it was passed in population by Vancouver during the first decade of the 20th century.