Saint John the Baptist church in Prandocin, Romanesque church in Prandocin, Poland.

Saint John the Baptist church in Prandocin is a single-nave Romanesque building of sandstone ashlar, oriented east, covered by a flat ceiling and originally with two apses. A Romanesque portal survives on one side wall, and in 1480–1490 a larger Gothic brick chancel with a straight wall decorated with zendrówka replaced the demolished altar apse. An octagonal tower with a Baroque helm rises above the western apse.

The Romanesque church was built in the first quarter of the 12th century, probably founded by Prandota the Old, progenitor of the Odrowąż family, and was surrounded by a cemetery from the start. In 1222 Bishop Iwo Odrowąż gave patronage over the prebends to the Cistercian abbey at Mogiła. In 1235 Duke Konrad of Masovia turned the church into a stronghold, and earthworks around it were still visible in the 19th century.

The entrance portal displays intricate architectural details including columns and capitals decorated with red, blue, and green polychrome patterns that remain visible today.

The church remains an active place of worship with regular services for the community. Visitors should remember this is a functioning religious space where respectful behavior is expected.

The stepped Romanesque portal, partly reconstructed, carries a plaited ornament and traces of polychrome; a column that once supported the western gallery now stands beside the cemetery. Inside, fragments of wall painting were uncovered during conservation work.