The University of the Ryukyus , abbreviated to Ryūdai (琉大), is a Japanese national university in Nishihara, Okinawa Prefecture, Japan. Established in 1950, it is the westernmost national university of Japan and the largest public university in Okinawa Prefecture. Located in the Senbaru neighborhood of the town of Nishihara, its campus borders both the village of Nakagusuku and the city of Ginowan.

Nishihara is a town located in Nakagami District, Okinawa Prefecture, Japan. In the Okinawan language, nishi means "north", as Nishihara was north of the historical Ryukyuan capital of Shuri.