The Protestant church of Boazum or Saint Martin's church[1] is a medieval religious building in Boazum, Friesland, Netherlands.

It is a late 12th century Romanesque church with inner walls of brick and outer walls of tuffstone with a 13th-century tower built out of yellow and red brick.

[1] The choir is likely the oldest part of the building.

[1] The church was originally a Roman Catholic church dedicated to Saint Martin, becoming a Protestant church after the Protestant Reformation.

It is listed as a Rijksmonument, number 8473.