is an unincorporated city located in the , a border region between Kyoto, Osaka, and Nara Prefectures of Japan. (It is about 25 km from the center of Kyoto, 30 km from Umeda, Osaka.) The name is commonly shortened to or . 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.
Kansai Science City is located in portions of the following eight and , in three prefectures:
Out of these, Seika and Kizu in Kyoto Prefecture are completely inside the Kansai Science City.
The overall area of the Kansai Science City is 150 km², with an estimated population of 410,000. There are 12 "Culture and Scientific Research Districts" within the Kansai Science City, encompassing 36 km², with an estimated population of 210,000.