Flag of Christmas Island
| Use | Civil and state flag |
|---|---|
| Proportion | 1:2 |
| Adopted | 14 April 1986 (unofficially) |
| Design | Blue and green diagonal bicolour charged with a southern cross of four seven-pointed white stars and one smaller five-pointed white star on the blue half, a golden bosun bird in gold on the green half, and a gold circle in the centre containing the shape of the island in green |
| Designed by | Tony Couch |
The flag of Christmas Island was unofficially adopted in 1986 after being chosen the winner in a competition for a flag for the territory. It was designed by Tony Couch of Sydney, Australia.