The emblem of the municipality Mellau was awarded in 1962. The design comes from the artist Hubert Dietrich, who was born in Mellau. In a split in red and white sign is a natural, uprooted pine tree that symbolizes membership in the Bregenzerwald, in the red box. In the white, three black crosses, the middle and the other two on a green hill. These are reminiscent of the plague, which killed 185 people died in 1635. They then erected in the plot "Klaus" three crosses, they are said to have the terrible plague stopped.