The Flag of Posavina Canton, Bosnia and Herzegovina, is a rectangular banner consisting of three horizontal stripes, symbolizing unity and harmony within the region. The top and bottom stripes are blue, representing the two major rivers that flow through the canton, the Sava and the Una. The middle stripe is white, which symbolizes peace and purity. This design was adopted on November 28, 1994, and serves as a visual emblem of the administrative division in Bosnia and Herzegovina known as Posavina Canton.