The Grande Bibliothèque du Québec (French pronunciation: [ɡʁɑ̃d biblijɔtɛk dy kebɛk], GBQ) was a public corporation of the province of Quebec, Canada.
It came into existence in 1998 and merged with Bibliothèque nationale du Québec in 2002.
Its purpose was to plan the creation of the Grande Bibliothèque.