Dreifaltigkeitskirche, Graz, Baroque church in Inner City district, Graz, Austria

The Dreifaltigkeitskirche is a Baroque church in the historic center of Graz, situated between Schlossbergplatz and Murkai along Sackstrasse. Its white facade features monumental columns and a semicircular pediment, while the interior showcases uniform Baroque furnishings and a high altar depicting the Trinity with sculptures of four church fathers.

Construction began in 1694 and finished in 1704 under Bartholomäus Ebner for the Ursuline sisters, originally named Ursulinenkirche. The Franciscan order later took over the building and renamed it to reflect the Trinity concept that remains central to its identity today.

The church was built as the Ursuline church, and the side altar on the south side holds a painting of Saint Ursula, the order's patron. The high altar shows the Trinity, with statues of the four Church Fathers — Gregory the Great, Jerome, Ambrose and Augustine — between the columns.

The church is easily accessible from Sackstrasse in the historic center and can be approached from several directions. Visitors should keep in mind that this is an active parish church, so access may be limited during services and prayers.

The angular pulpit, unusual for Baroque design, was donated by the Princess of Eggenberg. Its sounding board is crowned by a half-figure of God the Father. On the middle south side altar hangs a painting of Saint Ursula, patron of the Ursuline order that built the church.