Pfarrkirche St. Leonhard im Lavanttal, Gothic parish church in Bad St. Leonhard im Lavanttal, Austria

Pfarrkirche St. Leonhard im Lavanttal is a Gothic parish church in Bad St. Leonhard im Lavanttal, standing on an eastern slope above the town with a massive western tower topped by a 17th-century onion dome. The interior is a three-nave basilica containing numerous reliefs, frescoes, and a 17th-century high altar depicting the Assumption of Mary.

The present church was begun in the first third of the 14th century and was largely finished around 1340, replacing a Leonard chapel founded between 1106 and 1139. The massive west tower dates from around 1485 and was rebuilt after a fire in 1591. Its baroque onion dome was replaced in 1930 by a reconstruction of the original tower top with corner oriels, designed by Karl Holey.

The church is a pilgrimage site, and a chain forged in 1910–1912 runs around it; the original chain was donated around 1480 by a farmer who had been taken captive by the Turks and released. The late-Manierist cemetery portal was built in 1645 by Hans Schmitzberger, with a volute keystone, broken pediment and three obelisks.

The church sits on a slope, so visitors should wear comfortable shoes to manage the ascent easily. The best view of the building and its tower comes from the valley side, where you can see the entire structure against the sky.

Twelve Gothic stained-glass panels were sold to America during the Great Depression to fund the 1930 tower reconstruction; they are now in The Cloisters of the Metropolitan Museum in New York. The tower's present form, with four corner oriels under conical roofs, is a reconstruction by Karl Holey based on old views.