Aspö is a small village on the Aspö Island in Väståboland, Finland. Until 2009 it belonged to the municipality of Korpo. Its Finnish-language name is Haapasaari, although this name is seldom used. The village is known for its white limestone church that has a red brick roof. The current church was built in 1955–1956; however, a church has existed in the place since the Middle Ages.