Rosemont–La Petite-Patrie (French pronunciation: [ʁozmɔ̃ la pətit patʁi]) is a borough (arrondissement) in the city of Montreal, Quebec, Canada.

The borough is bordered to the northwest by Villeray–Saint-Michel–Parc-Extension, to the northeast by Saint Leonard, to the southeast by Mercier—Hochelaga-Maisonneuve, to the southwest by Le Plateau-Mont-Royal and its Mile End neighbourhood, and to the west by Outremont.

As of the November 7, 2021 Montreal municipal election, the current borough council consists of the following councillors: The borough is divided among the following federal ridings: It is divided among the following provincial electoral districts: The northwestern area of the borough is served by the orange and blue lines of the Montreal Metro.

The notorious Tunnel de la mort is located in that borough, at the intersection of Iberville St. and Saint-Joseph Blvd.

Important features of the borough include the Jean-Talon Market, the Montreal Heart Institute, the Hôpital Santa Cabrini, the Hôpital Maisonneuve-Rosemont, the Olympic Village, Maisonneuve Park (including the Insectarium and Montreal Botanical Garden), Saint Sophie Ukrainian Orthodox Cathedral, the Church of the Madonna della Difesa and Dante Park.