The State Library of Tasmania is the reference, special collections, research and public lending library in the Tasmanian capital of Hobart, Australia. It is part of Libraries Tasmania. Libraries Tasmania includes a state-wide network of library services, community learning, adult literacy and the State’s archives and heritage services.

Tasmania is an island state of Australia. It is located 240 kilometres (150 miles) to the south of the Australian mainland, separated from it by the Bass Strait, with the archipelago containing the southernmost point of the country. The state encompasses the main island of Tasmania, the 26th-largest island in the world, and the surrounding 1000 islands. It is Australia's least populous state, with 569,825 residents as of December 2021. The state capital and largest city is Hobart, with around 40 percent of the population living in the Greater Hobart area. Tasmania is the most decentralised state in Australia, with the lowest proportion of its residents living within its capital city.