The Cleveland Public Library is a public library system in Cleveland, Ohio. Founded in 1869, it had a circulation of 3.5 million items in 2020. It operates the Main Library on Superior Avenue in downtown Cleveland, 27 branches throughout the city, a mobile library, a Public Administration Library in City Hall, and the Ohio Library for the Blind and Physically Disabled. The library replaced the State Library of Ohio as the location for the Ohio Center for the Book in 2003.

Cleveland, officially the City of Cleveland, is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located in Northeast Ohio along the southern shore of Lake Erie, it is situated across the U.S. maritime border with Canada and lies approximately 60 miles (97 km) west of Pennsylvania. Cleveland ranks as the most populous city on Lake Erie, the second-most populous city in Ohio, and the 54th-most populous city in the U.S. with a 2020 population of 372,624. The city anchors the Cleveland metropolitan area, the 33rd-largest in the U.S. at 2.18 million residents, as well as the larger Cleveland–Akron–Canton combined statistical area, the most populous in Ohio and the 17th-largest in the country with a population of 3.63 million in 2020.