Seien Girls' High School (静岡県西遠女子学園中学校・高等学校, Shizuoka-ken Seien Joshi Gakuen Chugakkō-Kōkōgakkō) is a private girls' school located in Naka-ku, Hamamatsu city, Shizuoka Prefecture, Japan. The school is regarded as one of the best private schools in Japan. It currently has 1,200 students, 96 teachers and 24,000 graduates.