Château-Richer (French pronunciation: [ʃato ʁiʃe]) is a small town situated in the Capitale-Nationale region of Quebec, Canada.

Château-Richer was the first home to Quebec's oldest families (les Greniers, Giroux, Vachons, Bélangers, Juchereaux, Cloutiers) with descendants remaining to this day.

In 1626, Samuel de Champlain established in Château-Richer the first farm in the Saint Lawrence valley, to feed the people of Quebec city.

Jean Bourdon's map of 1641 is the earliest source that mentions the name "Chateau Richer", referring only to the cape or headland on which stands the present church.

In 1646, Olivier Letardif, Lord and Chief Prosecutor, granted 20 concessions to the inhabitants of Château-Richer so that they could officially establish themselves properly.