The Flag of Bangkok, Thailand, is a rectangular banner that serves as the official symbol of the city. Adopted on May 7, 1923, it bears three main elements: a white field, a red square in the upper hoist side, and a blue square occupying the lower fly half. The red and blue squares each contain a white five-pointed star, symbolizing the five original districts of Bangkok. The flag's design reflects the city's rich history and cultural significance within Thailand. It is used during official ceremonies, events, and on government buildings in Bangkok.