Kansai Science City is an unincorporated city located in the Keihanna Hills , a border region between Kyoto, Osaka, and Nara Prefectures in Kansai region, Japan. The name is commonly shortened to Keihanna Science City or Gakken-toshi (学研都市). The name Keihanna is constructed by extracting a representative kanji from Kyoto, Osaka, and Nara. It is about 25 kilometers (16 mi) south of the city of Kyoto and 30 kilometers (19 mi) east of the city of Osaka. The city was constructed to help the advancement of creative arts, sciences, and research, as well as to spur the creation of new industries and cultures.

Kyoto Prefecture is a prefecture of Japan located in the Kansai region of Honshu. Kyoto Prefecture has a population of 2,561,358 and has a geographic area of 4,612 square kilometres (1,781 sq mi). Kyoto Prefecture borders Fukui Prefecture to the northeast, Shiga Prefecture to the east, Mie Prefecture to the southeast, Nara Prefecture and Osaka Prefecture to the south, and Hyōgo Prefecture to the west.