Jacksonville Public Library, Public library in downtown Jacksonville, United States.

The Jacksonville Public Library is a public library system in downtown Jacksonville with a main building and branches throughout the area. The facility offers both physical collections and digital resources to serve readers with different interests.

The library was founded in 1878 as a free reading room that opened only during winter months. Over time it grew into an established library system serving the entire region.

The Main Library opened in November 2005 with a BOOKtique bookstore run by the Friends of the Library, which closed in 2013 and became The Lounge @ 303 North, an event space on the lower Conference Center level. Shelby's Café operated in the concession space from May 2007 until 2011. The library also runs a bookmobile service that began in 1928, the first in Florida, and continued for over 75 years until October 2005.

The main building sits on Laura Street and is open for visits on several days during the week. Plan ahead and check hours beforehand, as accessing specific resources or attending events may require a quick confirmation of availability.

The Main Library was designed by Robert A.M. Stern Architects, the firm of the 2011 Driehaus Prize winner, and built by Jacksonville's Auchter Company; it opened in November 2005. On April 18, 2012, the AIA Florida Chapter listed it under Florida Architecture: 100 Years. 100 Places. The 300,000-square-foot building can hold one million books.