Trinitatiskirche, Lutheran church in Braunlage, Germany.

The Trinitatiskirche is a timber-framed church built from 1887 to 1889, clad in dark-stained vertical boards with a steep snow-covered roof and a square west tower. Its framework uses Harz spruce, and the foundation is granite ashlar from the quarry on the Wurmberg. Tall pointed windows with light trim sit between wooden pilasters, and a stone monument with a rounded top stands near the front right corner.

A first church stood in Braunlage from 1602; a timber-framed replacement was consecrated at today's site on the first Sunday of Advent 1714 by Duke Ludwig Rudolf. The present church was built from 1887 to 1889 to plans by government master builder Heinrich Gebhardt of Blankenburg, costing 60,000 marks with 41,000 marks of state support, and was consecrated on 6 October 1889.

The church's name refers to the Trinity, and its 1889 stained-glass windows above the altar were donated by Carl Röhrig's glassworks in Braunlage; the middle one shows Jesus in a ring of light inviting communicants, flanked by the inscriptions "Ehre sei Gott in der Höhe" and "Friede auf Erden". A gypsum baptismal font donated in 1884 stands in the prayer corner.

The church stands at Herzog-Wilhelm-Straße 16 in the town centre, a short walk from the Marktstraße. The west tower carries the entrance, and the 1889 interior is entered from there. Visitors should time their look inside around services of the Lutheran congregation.

The church's three bells were cast in 1697 by Heiso Meyer of Wolfenbüttel and bear the inscription "Heiso Meyer goß mich zu Wolffenb. Anno 1697". A stone marked 1697, once set in the base of the old bell tower, is built into the dry-stone wall between Pfarrstraße and the rectory.