Megiddo church, Archaeological church at Tel Megiddo, Israel.

Megiddo church is an archaeological site near Megiddo Prison, a few hundred metres south of Tel Megiddo in northern Israel. Its foundations belong to a third-century Christian building, and the floor preserves a 54-square-metre mosaic with geometric figures, fish and three Greek inscriptions.

This church was built around 230 AD and ranks among the earliest known Christian church buildings in the world. Archaeologists uncovered its foundations in the early 2000s while digging at this ancient location.

Three Greek inscriptions survive in the mosaic floor. One names Gaianus, also called Porphyris, a centurion and brother who paid for the mosaic from his own funds; the craftsman Broutis laid it. Another commemorates four women, Primilla, Kyriake, Dorothea and Chreste, possibly martyrs of the community.

This site sits on prison grounds and is not freely accessible to the public. Visitors must arrange permits in advance and can only enter with authorized guided tours.

Three Greek inscriptions survive on the mosaic. One names Gaianus, also called Porphyris, a centurion who paid for the pavement from his own funds, and credits the work to Broutis. Another commemorates four women: Primilla, Kyriake, Dorothea and Chreste.