The Flag of Biel (Bienne) is the official symbol representing the city located in western Switzerland. The design consists of five equal horizontal bands arranged vertically, alternating between white and blue, starting with a white band at the hoist side. This specific color arrangement has been used since 1937. It’s essential to note that this flag is unique to Biel, as it differs from both the Swiss national flag and the canton of Bern’s flag, to which Biel belongs. The origins and meaning behind the adoption of this particular design remain uncertain, contributing to its intrigue among heraldry enthusiasts.