The Vidå (German: Wiedau, North Frisian Widuu) is a creek in Jutland, Denmark. The creek starts east of Tønder and flows to the west, ending in the North Sea. The Vidå is in parts border between Denmark and Germany (through the Rudbøl Sø).
South of the river live the North Frisians.
Coordinates: 54°56′N 8°54′E / 54.933°N 8.900°E