Øsby Church is a large, white village church, which was remodelled into a Gothic long church. You can see the remains of the original 13th century church at the bottom of the east wall. The current church was built in the 16th century.
The church has large, Gothic windows to the south, giving the church a bright and airy space with four sets of rib vaults. The ribs are decorated in Gothic frescoes, and on the northern wall of the nave there is a fresco of Saint George fighting the dragon. The beautiful carved pulpit dates from 1559.
The first written record of church in Danmark locality date back to the year 1291. Close to the church are several stones with a Christian text and cross inscribed. The oldest parts of the present red-brick church are from the 1300s. In the late 1400s the church was enlarged to the appearance it has today. The church has been modified both internally and externally several times, among other things after the fires in 1699 and 1889. There are lot of well-preserved mural paintings in the walls.