Allerheiligenkirche, Gothic church near Domplatz in Erfurt, Germany

Allerheiligenkirche is a Gothic hall church at the fork of Allerheiligenstraße and Marktstraße in Erfurt's old town. Its nave walls are not parallel but widen from the narrow west tower toward the east, and the interior is divided into two naves by two octagonal pillars with three pointed arcades. The south portal has a sandstone relief of the Crucifixion from 1370–1380, and the 53-metre tower is the highest in the old town.

Founded in 1117 by the priest Erkenbert and the archbishop's vicar Adalbert as an Augustinian convent with a monastery and hospital, the church was first confirmed in writing by Archbishop Adalbert of Mainz in 1125. A town fire in 1222 largely destroyed church and monastery; the hospital was last mentioned in 1234. Rebuilt in Gothic style until the 14th century, the nave was adapted to the street fork, widening eastward. Services stopped in 1525 and resumed in 1526; in 1936 the parish merged into the cathedral parish.

The church is dedicated to All Saints, and its name refers to the feast of All Saints. Since 2007 the north nave has housed a columbarium designed by Erfurt artist Evelyn Körber, with 15 steles of reddish-veined Thuringian limestone and sandblasted glass, each holding 42 urn compartments. The burial place is separated from the rest of the church by a glass wall and can only be entered by relatives with a chip card.

The church stands at the fork of Allerheiligenstraße and Marktstraße, a short walk from Domplatz. The main entrance is the west portal, leading into the tower basement; the south portal was opened in the 1890s while the north portal is bricked up. The columbarium in the north nave is separated by a glass wall and reserved for relatives with a chip card.

The tower gallery, reached by a wooden staircase past the 1619 bronze bell and the former tower keeper's flat, stands 36 metres up; with the slender spire the tower reaches 53 metres, the highest in Erfurt's old town. A ridge turret holds a 1415 bell weighing 75 kilograms.