Klixbüll church, Medieval church in Klixbüll, Germany.

St. Nikolaus Church stands on a hill outside Klixbüll, next to the core of the former Klixbüllhof estate. The early Gothic brick building has a recessed box choir and a four-sided baroque tower with a saddle roof added in 1699. The nave's right gable wall is covered in pale, weathered render and holds a wooden door with dark metal hinges.

First mentioned in a church register of 1240, the church replaced an earlier building lost to a storm surge. The present early Gothic brick structure with a recessed box choir dates from the 13th century, initially a chapel of Leck. Around 1460 it was one of the main churches of the Karrharde. The square Baroque tower was added in 1699, and the last renovation took place in 2010.

The parish language was a mix of Danish and German before 1864, and the congregation long resisted Danish-language services imposed in 1851, since everyday speech was North Frisian and Sønderjysk. Pastor Christen Pram Gad, appointed in 1860, founded a school library stocked mainly with the latest Danish history textbooks; he was dismissed in 1864 after the German-Danish War.

The church stands on a hill just outside the village, beside the core of the former Klixbüllhof estate, so it is reached on foot rather than in the village centre. The tower was converted into the west entrance during the 1967 restoration; the interior is entered through a double glass door. Visitors should check the parish's current opening arrangements before travelling.

The 1967 renovation turned the 1699 tower into the west entrance. Above the door, a stained-glass panel shows the enthroned Christ, and its reflection appears in the double glass doors between the porch and the nave.