The Miura Peninsula (三浦半島, Miura-hantō^?) is a peninsula located in Kanagawa, Japan. It lies south of Yokohama and Tokyo and divides Tokyo Bay, to the east, from Sagami Bay, to the west. Cities and towns on the Miura Peninsula include Yokosuka, Miura, Hayama, Zushi, and Kamakura.

The peninsula is a bed town to those who work in Tokyo and is also popular tourist destination for people from Tokyo. It is also an important area of Japan's self-defense, with the National Defense Academy of Japan on the western side of the peninsula and the Yokosuka Naval Base on the eastern side, for both Japanese Maritime Self Defence Force and United States Seventh Fleet.