The Société des traversiers du Québec (STQ) is a ferry company which has operated some intra-provincial ferry services in Quebec since 1971. It is a crown corporation owned by the Government of Quebec. STQ operates the following services: The following services are operated in partnership with another company:

New construction

On January 12, 2010, the corporation announced the signing of contracts for three new ferries. Concept Naval of Quebec City and STX Canada designed two ferries which would replace the existing ferries on the Tadoussac - Baie Sainte-Catherine route, the Armand-Imbeau and Jos-Deschênes. These ferries were under construction at Chantier Davie Canada in Lévis, Quebec. As of May 2018, the new ferries had not entered service and their projected cost had more than doubled the original estimate. One ferry was projected to enter service in Summer 2018 and the other in Fall 2018. The company Navtech Deltamarin (a joint venture of Navtech and Deltamarin Group), also of Quebec City, contracted to build the ferry which replaced the Camille-Marcoux on the Matane – Baie-Comeau – Godbout route. This vessel was constructed by Italian shipbuilder Fincantieri. All three new ferries are to be powered by liquefied natural gas (LNG).