The Montreal Public Libraries Network (French: Bibliothèques de Montréal [biblijɔtɛk də mɔ̃ʁeal], previously Réseau des bibliothèques publiques de Montréal) is the public library system on the Island of Montreal in Quebec, Canada.

It is the largest French language public library system in North America, and also has items in English and other languages.

The municipally-run Montreal Public Libraries Network (as distinct from the provincial Bibliothèque et Archives nationales du Québec, which is also located in Montreal) includes 67 libraries, including 44 libraries in the city of Montreal and 12 branches in other municipalities on the Island of Montreal.

There are several additional branches which are privately funded public libraries within the system and which require a nominal membership fee.

It housed a subscription library that allowed members who paid a fee to borrow books.