The Nyack Library is a free association library located in the village of Nyack in New York State. Established in 1879, The Nyack Library serves the residents of Nyack, Upper Nyack, South Nyack, Grand View, and Valley Cottage. In 1890, the library was incorporated and on June 5, 1894, it was entered under the New York State Board of Regents, by which means it received state aid.