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Église Notre-Dame-des-Victoires in Place Royal, Québec City, 1688.
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Chapel of the Convent of the Soeurs Grises de la Charité, Montréal. 1869-90.
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Chapelle Notre-Dame-de-Bon-Secours, Old Montréal. 1880's.
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Not a church, but the Séminaire de Québec in Québec City.
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Église de la Sainte-Famille, Île d'Orléans, Québec. 1743-1747
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Notre Dame du Cap, Trois-Rivieres, Québec. Founded 1651.
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St. Joseph, Deschambault, Québec. 1835-1838
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Church of St. Pierre, Ile d'Orleans, Québec. 1715-1719
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Notre Dame de la Garde, Québec City. 1871-92
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St Georges de Beauce, Québec. 1900-1902
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Saint-Félix Cap-Rouge, Cap Rouge, Québec. 1859.
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Saint-Étienne-de-Beaumont, Québec
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Incidentally, I would be very interested to hear from some of our readers in Québec, and in particular, Québec City.
And to readers generally: feel free to share more in the comments.