Collège Regina Assumpta (Regina Assumpta is Latin for "Assumption of the Queen") is a subsidized private, selective French-language school located in Montreal, Quebec, Canada, that was established in 1955 by the Sisters of Notre-Dame Congregation. The principal is Julie Duchesne. The financing principal is Marie-Andrée Delorme, the principal of pedagogical services is Julie Duchesne and the principal of the Culture and Sports Centre and principal of equipment is Christophe Bancilhon and the after school activities director is Stéphan Arbour. Although it used to be a school for Catholic girls, it is now open to children of all genders and of any religion.

Member of the Federation of Private Educational Establishments of Quebec (FEEP), it ranks among the best secondary schools in the “Bulletin of Secondary Schools of Quebec”, according to the annual ranking of the Fraser Institute.