Saint Peter Church, Őriszentpéter, Catholic church in Őriszentpéter, Hungary.

Saint Peter Church is a free-standing, single-nave brick building with a narrower, semicircular apse. Its most noticeable exterior feature is the southern doorway near the west wall, a Romanesque portal with a recessed, arched surround; a former porch left only its trace in the wall. A square tower with a pyramidal roof rises from the west facade, and a gallery with a central column stands at the west end of the nave.

Built around 1230 under Béla IV, the church was enlarged in Gothic style in the 14th and 15th centuries. Around 1550 it was fortified with bastions, ramparts and a moat, and after 1600 it became the most important of the hajduk castellums, housing 30–40 guards. Köprülü Ahmed's Turkish troops stormed and destroyed it in 1664; Protestants took over the ruined church, and Catholics regained it in 1732.

The church was used for Protestant worship during an earlier era, reflecting the religious diversity that shaped this region's history. Today the interior reflects Catholic traditions that have defined the space for centuries.

In summer the church is open daily from 10:00 to 16:00. From 1 November to 30 April, groups can arrange a visit a few days ahead by calling parish priest Ferenc Dóka at 94/428-077. Sunday Mass is at 8:30, so time interior visits outside that service.

The medieval church carried frescoes on its outer walls as well as inside; most are lost, but fragments survive on the southern exterior wall. In the 17th century biblical quotations were painted in the nave and the sanctuary, and these are still legible today.