Kansai Gaidai University , almost always abbreviated Kansai Gaidai (関西外大), is located in Hirakata, Osaka, Japan. It is a private university focusing on foreign language studies. Kansai is the proper name of the large region where it is located, which includes the cities of Kyoto, Osaka and Kobe. Gaidai is a contraction of Gaikokugo Daigaku, which literally means "foreign language university". Gaidai is part of Kansai Science City, which is undergoing construction around the campus.

Hirakata is a city in northeastern Osaka Prefecture, Japan. As of 31 December 2021, the city had an estimated population of 397,681 in 183075 households and a population density of 6100 persons per km2. The total area of the city is 65.12 square kilometres (25.14 sq mi).