Sankt Johannes der Täufer, church building in Upper Austria, Austria

Sankt Johannes der Täufer is a Gothic parish church in Bad Zell, Upper Austria, featuring a tall tower and pointed roof that rises above the town. The interior displays multiple building styles from different periods, including Baroque decoration, three naves, a chapel dedicated to Mary, a medieval granite baptismal font, and an ornate altar with frescoes.

The first written mention dates to between 1261 and 1278, when Zell was a daughter parish of Naarn. From 1550 to 1624, Protestant clergy dominated the area, but after 1624 the Catholic tradition returned and the church underwent Baroque redesign in the 18th century and Neo-Gothic modernizations in the 19th century.

The church's name comes from a wooden chapel (Celle) that likely stood at the upper end of the market square and gave Zell its name. Between 1740 and 1784 it was a major Marian pilgrimage site, and the high altar's painting by Bartolomeo Altomonte shows John the Baptist baptising Christ. Guided tours explain the building's history to visitors taking the cure in Bad Zell.

The church stands at the southeastern edge of the market square, on ground that drops steeply on three sides. Since the founding of the spa, guided tours of the building have explained its construction history to visitors from outside the town.

The church has a 45-metre tower with a Neo-Gothic spire, and its interior is one of the most varied Gothic spaces in the Mühlviertel. The vault ribs from about 1470–1510 are attributed to the Freistadt workshop under Mathes Klayndl. The oldest furnishing is a Gothic granite baptismal font.