Honoré-Mercier (French pronunciation: [ɔnɔʁe mɛʁsje]; formerly Anjou—Rivière-des-Prairies) is a federal electoral district in Montreal, Quebec, Canada, that has been represented in the House of Commons of Canada since 1988.

Its most recent Member of Parliament was Pablo Rodriguez of the Liberal Party of Canada, who resigned the seat on January 20, 2025.

The neighbouring ridings are Hochelaga, Saint-Léonard—Saint-Michel, Bourassa, Alfred-Pellan, Montcalm, and La Pointe-de-l'Île.

However, the NDP's "orange wave" in the 2011 election overwhelmed previous distinctions, with the New Democrats winning 149 of 218 polling divisions in the district.

It consisted of: In 2003, its name was changed to Honoré-Mercier and its boundaries were adjusted slightly such that 95.5% of the riding came from the original Anjou—Rivière-des-Prairies, while 4.5% came from Hochelaga—Maisonneuve.