Kuroda Nagamasa
is a Japanese castle located in Chūō-ku, Fukuoka, Japan. It is also known as Maizuru Castle (舞鶴城 Maizuru-jō) or Seki Castle (石城 Seki-jō). Completed in the early Edo period for "tozama daimyō" Kuroda Nagamasa, it has been decreed a historic site by the Japanese government.