The Church of Zoodochos Pigi (Greek: Ζωοδόχος Πηγή, "Life-giving Spring") is a Byzantine-era church in the village of Pyli, Boeotia (formerly known as Dervenosalesi), originally part of a monastery.
On stylistic grounds, it has been dated to the late 12th century.
[1][2] The katholikon, whose foundations survive, was a cross-in-square domed church with three semicircular apses, and sported a floor decoration by inlaid marble in geometric patterns very similar to the nearby Church of Hosios Loukas.
[2] The narthex is roughly octagonal, with four crosswise central vaults and niches in the corners.
[1][2] From the rest of the monastery, only portions of the surrounding walls and, to the north, the foundations of the monastery baths, datable to the 13th century, survive.