Pfarrkirche Weißenkirchen in der Wachau, Gothic church in Weißenkirchen in der Wachau, Austria.

Pfarrkirche Weißenkirchen in der Wachau is a fortified church ringed by a defensive wall with three multi-storey corner towers, the most important such complex in Lower Austria. Its massive square northwest tower was built in 1502, rising five storeys to a steep hipped roof with dormers. The late Gothic choir dates from 1519 to 1529, and the squat nave, essentially 13th- and 14th-century, carries a steep roof hipped at the west end.

The structure began as a small chapel after the year 1000 and expanded northward during the 14th century. Around 1450 it received its parish status and became the religious center of the settlement.

The church is dedicated to the Assumption of Mary and belongs to the Spitz deanery of the St. Pölten diocese. Its black-and-gold high altar from around 1700 holds an oil painting of the Assumption, probably by Karl von Reslfeld, framed by four large saints: Joseph, Joachim, John the Baptist and Anne. The pulpit dates from 1742.

The church stands on raised ground above the market, ringed by a fortified wall with three corner towers; the wall survives on all sides except the north, so the enclosure can be walked around. The massive northwest tower of 1502 and the steep west-hipped roof make the building visible from much of the village and the Danube bank below.

The ring of walls with three multi-storey corner towers is described in the sources as the most important fortified church complex in Lower Austria. It was built in the first third of the 16th century and completed in 1531/33, and survives essentially intact except on the north side.