St. Cyriak, Baroque parish church in Lehen, Freiburg im Breisgau, Germany

St. Cyriak is a baroque parish church in the Lehen district of Freiburg im Breisgau. It has a white-plastered nave with a red tiled roof and a three-storey tower topped by a green copper onion dome. The tower, originally Gothic, was incorporated into the 1724 rebuild. The interior is plain, with a high altar of 1737 showing the Assumption of Mary.

A church owned by the Basel Cathedral Chapter was first mentioned in 1139, though the document is thought to be a forgery from 1180. The parish was elevated in 1215, and a smaller Gothic church stood on the site in the 13th/14th century. In 1724 the community replaced it with a Baroque new building led by Gerhard Hauber, incorporating the late Gothic bell tower.

The church is the centre of the Seelsorgeeinheit Freiburg Nordwest, a parish community that also includes St. Thomas in Betzenhausen, St. Albert in Bischofslinde, St. Martin in Hochdorf with the Agatha chapel in Benzhausen, and St. Petrus Canisius in Landwasser. The former tithe barn now serves as the parish hall, housing the Cyriaksaal and an open youth centre.

The church stands in Lehen, a district northwest of Freiburg's centre, among houses, gardens and trees; the tower with its onion dome and the adjoining parish house serve as the village landmark. The former tithe barn next door now houses the parish hall with the Cyriaksaal and an open youth centre. The tower clock shows Roman numerals on three sides, and all four bronze bells are tied into its striking.

The smallest of the four bronze bells dates from 1698 and bears the inscription "Gott zu Ehren fir die gesamte Vogtei zu Lehen". All bells are tied into the tower clock: the first strikes the hour, the others the quarter-hours, and Roman-numeral dials sit on three sides of the tower.