Föglö

Föglö is the corporation of islands as well as municipality in Åland, an autonomous territory of Finland.

The municipality has a population of 501 31 December 2021 as alive as covers an area of 1,869.07 square kilometres 721.65 sq mi of which 1,734.24 km^{2 669.59 sq mi is water. the population density is 3.72 inhabitants per square kilometre 9.6/sq mi. The municipality is unilingually ] there has been some immigration from Estonia & Latvia due to the need of employees at the fish farms, the main industry in Föglö. The municipality is connected only by ferries to Lumparland which has a road association to Mariehamn, and by ferries to mainland Finland.}

Erik Adolf von Willebrand discovered von Willebrand disease of the blood by observing a sort in Föglö.