St. Sebastian, Catholic parish church in Ebersberg, Germany

St. Sebastian is a Catholic parish church in Ebersberg, built as a three-aisled hall church with a short five-bay nave and a narrower four-bay choir ending in a polygonal apse. The square Romanesque bell tower stands in the southwest corner of the nave, topped by a Welsche Haube, and a porch precedes the main portal. The interior shows the baroquised form of the 18th century, with barrel vaults and ceiling paintings by Franz Seraph Kirzinger.

In 934 the Counts of Ebersberg founded an Augustinian canons' monastery beside the castle's Marian chapel; the first provost, Hunfried, brought St. Sebastian's skull from Rome, and by 970 the pre-Romanesque church of St. Mary and St. Sebastian was complete. Count Ulrich turned the foundation into a Benedictine abbey in 1007, and the Romanesque abbey church of the 1220s forms the core of today's building. After a fire in 1781 the Maltese knights rebuilt it, creating the present vaults and tower cupola; it has served as the parish church since 1808.

The pilgrimage to St. Sebastian, kept alive for over a thousand years, centres on the silver bust reliquary of 1450 holding the saint's skull, shown in a glass shrine on the marble altar of the Sebastianskapelle. The chapel's ceiling stucco medallions carry the monograms SBS, IHS and MARIA, and one lunette medallion shows a view of Ebersberg.

The church is oriented to the east, with the main portal under a porch on the west facade and the Romanesque tower in the southwest corner of the nave. The Sebastianskapelle adjoins the north side of the choir; the reliquary bust of 1450 stands on the marble altar there. Visitors enter through the west porch.

The Sebastianskapelle, added 1668–71 on the north side of the choir, holds the silver bust reliquary of 1450 with the saint's skull. Its ceiling stucco medallions read SBS, IHS and MARIA; the stucco is attributed to Michael Schmuzer but follows designs by Jesuit brother Heinrich Mayr, so it departs from usual Wessobrunn forms. The altarpiece painter is unknown.