The Grolier Club is a museum, library, private club and society of bibliophiles in New York City. Founded in January 1884, it is the oldest existing bibliophilic club in North America. It is named after Jean Grolier de Servières, Viscount d'Aguisy, Treasurer General of France, whose library was famous; his motto, "Io. Grolierii et amicorum" [of or belonging to Jean Grolier and his friends], suggested his generosity in sharing books.