The Chateauguay Valley is an area of southwestern Quebec Canada, roughly encompassing the drainage basin of the Châteauguay River which flows from the Adirondack Mountains in northern New York state and joins the Saint Lawrence River near Montreal, Quebec.

The Valley is mainly made up of rural communities and is known for its agriculture and apple orchards.

It includes the area roughly stretching from Dundee and Huntingdon in the west to Hemmingford in the east and north to Châteauguay.

• ChateauguayValley.ca - Online Chateauguay Valley Region Community based Newspaper : Sharing original articles, News, information and links about the Chateauguay Valley region and beyond!
• Map of the Châteauguay River watershed and the Chateauguay Valley in Canada
• Map of the entire Châteauguay River watershed
• Photographs of the area
• Battle of the Châteauguay National Historic Site of Canada
• Ormstown Fair
• The Valley of the Châteauguay River
• The Russeltown Flatts Church
• It's My Town - Participatory news site for the Chateauguay Valley

45°21′40″N 73°45′00″W / 45.36111°N 73.75000°W / 45.36111; -73.75000