Chapel of Holy Trinity, Baroque chapel in Mikulášovice, Czech Republic

The Chapel of the Holy Trinity is a centrally planned baroque chapel on a triangular ground plan with concave-cut corners, standing in upper Mikulášovice. Its outer walls are windowless and clad in sandstone with lisen frames; three tall portals with semicircular arches have stood empty since the late 1960s. A bell-shaped slate roof topped by a lantern covers the building.

A wooden chapel stood at the site called U pěti lip by the early 18th century, first recorded on Müller's map of Bohemia in 1723. Count Leopold Antonín of Salm-Reifferscheidt commissioned a brick replacement, and builder Zacharias Hoffmann completed it in 1742 for 660 thalers and a quarter of beer. It has been a listed cultural monument since 4 April 1966.

The chapel stands at a spot called U pěti lip ("at the five lindens"), which gave it the German name Fünf-Linden-Kapelle. Pilgrimages from the churches of St Nicholas in Mikulášovice and St Martin in Brtník met here for a service on the feast of the Holy Trinity, attended by several thousand believers; the last procession came on 27 May 1945.

The chapel stands on the upper edge of Mikulášovice, on the site called U pěti lip, by the road where a small memorial marks a 2019 accident. It has no regular services; a pilgrimage mass is held usually on the feast of the Holy Trinity. The three portals have been without doors and frames since the late 1960s.

The chapel holds official status as a cultural monument of the Czech Republic and is protected under state heritage laws. This designation ensures that its original baroque features are preserved for future generations.