The Cathedral-Basilica of Notre-Dame de Québec (Our Lady of Quebec City), in Quebec City, Quebec, is the primate church of Canada and seat of the Roman Catholic Diocese of Quebec, the oldest see in the New World north of Mexico. It is also the parish church of the oldest parish in North America. It was the first church in North America to be elevated to the rank of minor Basilica by Pope Pius IX in 1874.

Located on this site since 1647, the Cathedral has twice been destroyed by fire throughout the centuries. Today's cathedral is richly decorated with impressive works of art: baldaquin , canopy, episcopal throne dais, stained glass windows, paintings, and chancel lamp (a gift of Louis XIV).

Four governors of New France and the bishops of Quebec are buried in the crypt, including François de Laval, Quebec's first bishop.

The church is located at 20, rue de Buade.

See List of cathedrals in Canada.