St. Martin Morsum, Romanesque parish church in Morsum, Germany.

St. Martin Morsum is a Romanesque church built from granite blocks with a recessed choir, semi-circular apse, and original northern windows from the building period still intact. The structure sits on a gentle hillock in the flat marshland outside Morsum village, with a separate bell tower standing beside it.

St. Martin was first documented in 1240, like the church of Keitum, but its granite base, tuff choir and brick nave point to construction in the last third of the 12th century, before the brick-building era. The south porch, called Kalfaster, was added in 1793 and renewed in 1933; the lead roof of the nave was sold in 1895 and replaced with slate.

The church is dedicated to Saint Martin of Tours, and his figure stands on the right side of the late Gothic winged altar, with Saint Severin on the left and the twelve apostles on the side panels. The centre shows God the Father holding his dead son, without the usual dove. The six relief panels of the 1698 oak pulpit depict the Annunciation, Nativity, Baptism, Crucifixion, Resurrection and Ascension.

The building stands out clearly on its hillock and is easy to reach, with gentle access from the surrounding marshland allowing visitors to explore at leisure. Regular Protestant services take place, so visitors can experience the interior at certain times if they wish to attend.

The bell tower houses a 1767 bell that is rung by hand and bears the Latin inscription 'Glori gloria in exelsis Deo'. This manual bell-ringing continues a medieval practice that remains alive at this location.