The Flag of Marne is the official symbol representing the department of Marne, one of the 102 departments in France. Adopted in 1948, it features three horizontal stripes of equal size in the colors blue (top and bottom) and white (middle). The flag design mirrors the French tricolor, reflecting Marne's historical connection to France. The department of Marne is located in the northeastern region of Grand Est and encompasses the city of Chteau-Thierry. The Flag of Marne serves as a visual representation of the department's regional identity within France.