Flag of Fukuoka Prefecture Japan The Flag of Fukuoka Prefecture is a banner used to represent the administrative region located on the southern island of Kyushu, Japan. Adopted on April 14, 1968, the flag features three white hoist-side stripes and a large red circle occupying the rest of the field. The three white stripes symbolize Mount Fuji, the Sunoikos River (Kokidani), and the Sea of Genkai – all significant geographical landmarks within Fukuoka Prefecture. The red circle represents Dazaifu, an ancient capital city of Japan during the Nara period, which is now a district within the modern-day Fukuoka City. This emblematic flag serves as a visual representation of the rich history and unique geography of Fukuoka Prefecture, reflecting its cultural and traditional identity as a vital part of Japan.