An unofficial flag of Saint Barthélemy consisting of the coat of arms of Saint Barthélemy centered on a white field is used on the island.

[1][2][3] Officially, only the flag of France, of which Saint Barthélemy is a self-governing overseas collectivity, is flown in the territory.

The coat of arms of Saint-Barthélemy is a shield divided into three horizontal stripes (parted per fess), three gold fleurs-de-lis on blue, above a white Maltese cross on red, over three gold crowns on blue, and "Ouanalao" is what the indigenous people called the island.

The fleurs-de-lis, Maltese Cross, and gold crowns are heraldic reminders of the island's history as a colony ruled by first the Kingdom of France, then the Knights Hospitaller and in turn the Kingdom of Sweden.

On a white background, the arms serves as an unofficial flag for Saint Barthélemy.