| Country | Flag description |
| British Indian Ocean Territory | white with six blue wavy horizontal stripes; the flag of the UK is in the upper hoist-side quadrant; the striped section bears a palm tree and yellow crown centered on the outer half of the flag |
| British Virgin Islands | blue, with the flag of the UK in the upper hoist-side quadrant and the Virgin Islander coat of arms centered in the outer half of the flag; the coat of arms depicts a woman flanked on either side by a vertical column of six oil lamps above a scroll bearing the Latin word VIGILATE (Be Watchful) |
| Brunei | yellow with two diagonal bands of white (top, almost double width) and black starting from the upper hoist side; the national emblem in red is superimposed at the center; the emblem includes a swallow-tailed flag on top of a winged column within an upturned crescent above a scroll and flanked by two upraised hands |
| Bulgaria | three equal horizontal bands of white (top), green, and red note: the national emblem, formerly on the hoist side of the white stripe, has been removed |
| Burkina Faso | two equal horizontal bands of red (top) and green with a yellow five-pointed star in the center note: uses the popular pan-African colors of Ethiopia |
| Burma | red with a blue rectangle in the upper hoist-side corner bearing 14, white, five-pointed stars encircling a cogwheel containing a stalk of rice; the 14 stars represent the seven administrative divisions and seven states |
| Burundi | divided by a white diagonal cross into red panels (top and bottom) and green panels (hoist side and fly side) with a white disk superimposed at the center bearing three red six-pointed stars outlined in green arranged in a triangular design (one star above, two stars below) |
| Cambodia | three horizontal bands of blue (top), red (double width), and blue with a white three-towered temple representing Angkor Wat outlined in black in the center of the red band note: only national flag to incorporate an actual building in its design |
| Cameroon |  three equal vertical bands of green (hoist side), red, and yellow, with a yellow five-pointed star centered in the red band note: uses the popular pan-African colors of Ethiopia |
| Canada |  two vertical bands of red (hoist and fly side, half width) with white square between them; an 11-pointed red maple leaf is centered in the white square; the official colors of Canada are red and white |