Osaka Prefecture is a prefecture located in the Kinki region on Honshû, the main island of Japan. The capital is the city of Osaka. It is the center of Osaka-Kobe-Kyoto area.
Osaka Prefecture neighbors the prefectures of Hyogo and Kyoto in the north, Nara in the east and Wakayama in the south. The west is open to Osaka Bay. The Yodo and Yamato Rivers flow through the prefecture.
Prior to the construction of Kansai International Airport, Osaka was the smallest prefecture in Japan. The artificial island on which the airport was built added enough area to make it slightly larger than Kagawa Prefecture.
