The Kalvarienbergkirche am Tremmelberg is a Roman Catholic Calvary church on the Tremmelberg in the market town of Seckau in Styria.
The church with the patrocinium of the Finding of the Cross was built in the first third of the 18th century with a Calvary path with wayside shrines. The hall with the side chapels under hipped roofs forms a cruciform ground plan and bears a ridge turret with an onion helmet in the east. In the altar niche is a baroque crucifixion group from the first half of the 18th century.
The Calvary Church is generally closed. During masses from July to October, the church is open every Sunday from 03:00 p.m.