Which Asian country has a red circle on a white national flag? Japan. Japan’s national flag is a white rectangular field bearing a crimson-red disc at its center, representing the sun. The design is commonly associated with Japan’s traditional description as the “Land of the Rising Sun.”
The flag is officially called the Nisshōki, meaning “sun-mark flag,” while Hi no maru, or “circle of the sun,” is the name most often used in Japan. Japan’s government formally established the modern design in law in 1999, although the flag had been used officially in various forms for much longer, including as a merchant flag from the 19th century.
The other options can look deceptively similar. Bangladesh also has a red disc on a green field, while Indonesia and Monaco use horizontal red-and-white designs. Laos has a blue stripe with a white disc, not a red one. Japan’s flag is especially distinctive because the single red sun disc sits on an otherwise plain white background.