The Nishisonogi Peninsula (西彼杵半島 Nishi-sonogi hantō) is a peninsula in northwest Kyūshū, Japan. It is the north-northwesterly fork of a larger peninsula which also includes Nagasaki Peninsula. To its west is the East China Sea, while to the east it encloses Ōmura Bay.
33°05′59″N 129°40′45″E / 33.099595°N 129.679184°ECoordinates: 33°05′59″N 129°40′45″E / 33.099595°N 129.679184°E Yorifunebana (寄船鼻?):Northernmost point