Kanagawa Prefecture (神奈川県; Kanagawa-ken) is a geographic and political area located in the Kanto region on Honshu island, Japan.
Kanagawa is a relatively small prefecture wedged between Tokyo on the north, the foothills of Mount Fuji on the northwest, and the Pacific Ocean and Tokyo Bay on the south and east.
The Convention of Kanagawa was the event that forced open Japanese ports to the United States by Commodore Matthew Perry.