Saint Victor, church building in Poschiavo in the canton of Grisons, Switzerland

Saint Victor is the collegiate church of Poschiavo, a late-Gothic nave with stepped buttresses and pointed windows joined to a Romanesque stone tower whose top storey carries crossed arches and painted clock faces. The west portal, carved in 1700, sits under a tracery rose window; inside, a rib vault covers the nave and polygonal choir, with keystones showing an ibex, the Poschiavo coat of arms, a rosette and a bird.

Begun in the 12th century, the church gained its Romanesque bell tower in the first half of the 13th century; the choir was built in 1497 by Andreas Bühler and the nave vaulted in 1503 by Sebold Westolf. From 1547 St. Victor was shared with a Protestant congregation, an arrangement ended by the papal bull of 1622 and the sacro macello poschiavino of 1623. The interior was redone in Baroque style in 1653 and in neo-Gothic form in 1902–1903; restorations followed in 1975, 1988–1989 and 2003.

The church is dedicated to Victor of Milan, the patron saint of Poschiavo. From 1547 it was used jointly by Catholics and Protestants, who held services at different times and turned the pews toward the altar or the pulpit; this ended with the expulsion of the Reformed in 1623. A plaque commemorates Edgar Aristide Maranta (1897–1975), a Capuchin from Poschiavo who became Archbishop of Dar es Salaam.

The church stands in the centre of Poschiavo, not on a hill, so it is reached on foot through the village lanes. The west portal, framed by a rectangular cornice and a blind ogee arch, is the main entrance; the two-storey sacristy and the Romanesque bell tower are on the south side. The interior narrows from west to east, so the nave is widest at the entrance.

The vault keystones of the nave carry a carved ibex, the coat of arms of Poschiavo, a rosette and a bird, perhaps a peacock or swan; the third bay bears an inscription naming the builder. The organ, built by Friedrich Goll of Lucerne in 1889 and reworked in 1991, keeps carved wings made around 1500 in the manner of Lombard carvers, showing Saint Bartholomew, Saint Roch and Saint Martin of Tours.