Chateauguay

Chateauguay may refer to:

Chateauguay / Châteauguay

 * Châteauguay, suburb of Montreal
 * Châteauguay River, flowing in New York State and South-West of Quebec
 * Chateauguay Valley
 * Chateauguay River, a tributary of the Caniapiscau River, in Nord-du-Québec, Québec, Canada

Chateaugay / Châteaugay

 * Chateaugay (village), New York
 * Chateaugay (town), New York
 * Châteaugay, a commune of the Puy-de-Dôme Department in France

Electoral districts in Quebec, Canada

 * Châteauguay (federal electoral district), former federal electoral district
 * Châteauguay—Huntingdon, former federal electoral district
 * Châteauguay—Huntingdon—Laprairie, former federal electoral district
 * Châteauguay—Saint-Constant, former federal electoral district
 * Châteauguay—Lacolle, current federal electoral district
 * Châteauguay (provincial electoral district)

Other uses

 * Charles le Moyne de Longueuil et de Châteauguay (1626–1685), French-born soldier and Lord in New France
 * Battle of the Chateauguay
 * HMCS Chateauguay, the Joint Support Ship Project Queenston-class ship
 * Chateaugay (horse) (1960–1985), American Thoroughbred racehorse
 * Chateauguay River, New York