Flag of Brunei

The flag features a yellow field bisected by two diagonal stripes of white and black that run from the upper hoist to the lower fly. Centered upon these stripes is the national coat of arms in red, which includes a crescent, a parasol, and two upturned hands. Arabic inscriptions are visible on the crescent and the ribbon below the emblem.

Yellow represents the Sultan of Brunei, a color traditionally associated with royalty across the Malay Archipelago. The diagonal stripes of white and black commemorate the Pengiran Bendahara and Pengiran Pemancha, the two chief viziers who assisted the Sultan. Within the coat of arms, the crescent symbolizes Islam, while the parasol signifies the sovereignty of the monarchy. The Arabic text on the crescent translates to the national motto, 'Always in service with God's guidance.'

Originally, a plain yellow flag represented the Sultanate before the addition of black and white diagonal stripes in 1906 to honor the two main ministers. On September 29, 1959, the current design was officially adopted following the promulgation of the Constitution of Brunei. This version introduced the red coat of arms to the center of the existing striped field. Upon achieving full independence from the United Kingdom in 1984, the nation retained this 1959 design as the national standard.