Ōita Expressway (大分自動車道, Ōita Jidōsha-dō) is a Japanese expressway in Kyushu that travels from Tosu to Hiji, where it connects to the Higashikyushu Expressway.

It runs through the southern half of Fukuoka Prefecture, and the northern half of Ōita Prefecture.

The total length of Ōita Expressway is 104.7 kilometres (65.1 mi).