The flag of Saint Martin does not have an official design, as the island is divided into two separate territories: French Saint-Martin and Dutch Sint Maarten. Each territory has its own flag.

French Saint-Martin flag:

1. Colors: Blue (#002395) and white
2. Aspect ratio: 2:3
3. Features: Vertical blue and white stripes with the coat of arms centered

Dutch Sint Maarten flag:

1. Colors: Red (#D21034), white, and blue (#2E3192); gold (#FCD116) in the emblem
2. Aspect ratio: 2:3
3. Features: Horizontal red, white, and blue stripes with the island's coat of arms in the center-left portion