Muhu (German: Mohn/Moon; in Estonian also called Muhumaa), is an island in the Baltic Sea. With an area of 198 km2 (76 sq mi) it is the third largest island belonging to Estonia, after Saaremaa and Hiiumaa.Together with neighbouring smaller islands of Kesselaid, Viirelaid, Võilaid and Suurlaid it forms Muhu Parish (Estonian: Muhu vald), the rural municipality within Saare County. The municipality has a population of 1,697 (as of 19 April 2010) and covers an area of 206.12 km2 (80 sq mi).