St. Cantianus and Companions Parish Church, Gothic parish church in Kranj, Slovenia.

St. Cantianus and Companions Parish Church is a late Gothic hall church on the edge of Kranj's main square, built on the foundations of a 6th-century pre-Slavic sacred building. Its nave is divided into three equal-height aisles by four slender octagonal pillars, and the bell tower is integrated into the church. The long choir was added in 1413, and the star-ribbed vault has keystones decorated with figures and plants.

The parish of Kranj was already known in the mid-10th century, and a cemetery beside an old Slavic building covered most of today's medieval town core between the Kokra and Sava. The presbytery was added in 1413 to an older nave, which was replaced mid-15th century by a Gothic hall with polygonal columns. Archaeological digs in 1972 and 1984 found a 6th-century pre-Slavic sacred structure beneath the church.

The church is dedicated to Saints Cantius, Cantianus, Protus and Cantianilla, a quartet of martyrs venerated here since the parish was recorded in the mid-10th century. The winged altar carved around 1500 was sold to Vienna, and the present altar carries statues by France Gorše. The building's acoustics now draw classical and choral concerts alongside regular services.

The church stands at the edge of Kranj's main square, with the bell tower built into the structure. The Majdič Fountain, carved by Fran Berneker with statues of John of Nepomuk and a queen, leans against the side facade. Classical and choral concerts are held here alongside regular services because of the room's acoustics.

This building was among the first to systematically apply Gothic style in the region, making it a reference point for churches that followed. This pioneering role allowed other communities to learn from and adapt its architectural approach.