Kyushu Expressway is one of the Expressways of Japan from Kitakyūshū to west of Kagoshima linking with the Higashikyushu Expressway and the Ibusuki Skyline. It runs through the prefectures of Fukuoka, the eastern half of the Saga, Kumamoto, Miyazaki and the Kagoshima prefectures. The freeway runs entirely on the island of Kyūshū. The total length is 346.2 km. It does not cover Ōita or Nagasaki.

Kagoshima Prefecture is a prefecture of Japan located on the island of Kyushu and the Ryukyu Islands. Kagoshima Prefecture has a population of 1,564,175 and has a geographic area of 9,187 km2. Kagoshima Prefecture borders Kumamoto Prefecture to the north and Miyazaki Prefecture to the northeast.