St. Antonius, Catholic filial church in Westend, Frankfurt, Germany

St. Antonius is a Roman Catholic church on Savignystraße in Frankfurt's southern Westend, built in Gothic Revival style of light grey stone. Its tall east tower carries a steep slate spire with four corner pinnacles, two gold-faced clocks and a rose window; the nave lies to the west, so the choir faces west. The entrance portal is framed by a pointed arch with a blue rose window above a bearded figure holding a book.

The church was funded by Princess Anna von Hessen in 1899, establishing it as an important religious structure of the late 19th century. Following severe damage during World War II, the building underwent major reconstruction and restoration from 1947 to 1949.

The church is named after Saint Anthony of Padua, chosen by its donor Anna von Hessen. From 1900 the Capuchin order, absent from Frankfurt for nearly a century, provided pastoral care here with six friars. The Capuchins had earlier held the Antoniterkirche in the Töngesgasse from 1722 until secularisation in 1802.

The church stands at Savignystraße 15 in the southern Westend, with the tower and main entrance on the east side facing the street and the choir at the western end. The parish office is at Bettinastraße 28, and a daycare centre is next door at number 26. The towers of Westendstraße 1 and City-Haus I rise directly nearby, so the church is easily found from the surrounding high-rises.

The building houses Frankfurt's second-largest pipe organ, an impressive instrument with more than 4,300 pipes and numerous registers. This organ was installed in 1965 to replace the original instrument that was destroyed during the war.