Toyooka City Library, Public library in Toyooka, Japan.

Toyooka City Library is a public library in Kyomachi, Toyooka, Hyogo Prefecture, with a main building and five branches in Kinosaki, Takeno, Hidaka, Izushi and Tanto. The main building, opened in 1998, is a reinforced-concrete structure of three floors above ground and one below, with 2,901 m² of floor space. It stands on the site of the former Toyooka Jinya and later Toyooka Prefectural Office, whose main gate now serves as the library's entrance gate.

This location once housed Toyooka Jinya, an administrative center from Japan's Edo period. The modern library was built on these historic grounds, bridging the site's past administrative role with its present educational function.

The main library holds 213,616 volumes (2023), and all six sites together hold 385,566 (2019). Since December 2005 readers can borrow and return books through a link with the Japan-Mongolia Museum in Tanto, and registration also opens the libraries of Yabu, Kami and Kyotango.

The main library stands at 5-28 Kyomachi, about 700 metres south-east of Toyooka Station on the JR and Kyoto Tango lines, with 31 parking spaces. It opens 10:00–18:00 on Sundays, Mondays, Wednesdays and Thursdays, and 10:00–19:00 on Fridays and Saturdays. It is closed on Tuesdays, national holidays, a month-end stocktaking day and from 28 December to 4 January.

The library stands on the site of the Toyooka Jinya, the Edo-period domain headquarters, and later of the Toyooka Prefectural Office; the office's main gate now serves as the library's main gate. The main building opened on 18 December 1998 and was renovated on 14 July 2018 at a cost of 54.83 million yen.