Newmarket Public Library, Public library in Newmarket, Canada

Newmarket Public Library is a public library offering a wide selection of books, audiobooks, magazines, DVDs, and video games. The collection contains tens of thousands of items that visitors can borrow or use on-site.

The Mechanics Institute of Newmarket was established in December 1856 and built a hall on Lot Street in 1865. A provincial Act of 1895 required municipalities to dissolve Mechanics Institutes and create public libraries. On 4 January 1904 residents voted 90–26 to fund a library through taxes, and the current building, paid for from the estate of Edgar Bogart, opened on 9 June 1956.

The library runs a seed library with the York Region Food Network and participates in the student-run Chess in the Library program. Its Lendery, a partnership with York Region and nonprofit NewMakeIt, lends board games, appliances, tools and sports equipment.

The library is open Mondays from 11 a.m. to 7 p.m., Tuesdays to Thursdays from 9 a.m. to 9 p.m., Fridays and Saturdays from 9 a.m. to 5 p.m., and Sundays from 1 p.m. to 5 p.m. It closes on all Canadian public holidays. A free membership card is available to all Ontario residents. Return items at dropboxes at Upper Canada Mall, Ray Twinney Recreation Complex, and the Magna Centre.

In 2020 the library opened The Lendery, a collection of board games, appliances, tools and sports equipment for loan, partly stocked through a 2019 donation drive and run with York Region and the nonprofit NewMakeIt. It also runs a seed library with the York Region Food Network.