Montegualtieri tower, Medieval defense tower in Cermignano, Italy.

Montegualtieri tower stands on a hilltop at 260 m above sea level on the southern side of the Vomano valley, in the hamlet of Montegualtieri, Cermignano. It rises from a triangular plan and is the highest part of the village's defensive system, of which stretches of wall remain. Inside the garden around the tower, remains of granaries and guard rooms are visible.

The tower already stood on the hill in the 12th century, probably raised in the Norman kingdom in the second half of that century; a document of 1140 mentions it. The name Monte Gualtiero appears around 1170, replacing the earlier Mons. In 1239 Frederick II assigned Lombard League prisoners to 76 Abruzzo barons of the Middle Vomano valley, among them a Gualtiero del Monte, later linked by name to the tower. Until 1278 the fortification belonged to the Lords of Pagliara.

The tower displays typical medieval military features like crenellations and narrow arrow slits, showing its role in the local defense system. These details remain visible today and demonstrate how such structures shaped the surrounding territory.

The tower stands on a hilltop at 260 m above sea level on the southern flank of the Vomano valley, above the oval hamlet of Montegualtieri in the municipality of Cermignano. The remains of the granaries and guard rooms can be seen in the garden area around the tower. The site is part of the Valle delle Abbazie tourist-religious itinerary.

The structure historically served as a communication point with sightlines extending from the Adriatic coast to the Gran Sasso mountain range. This position made it a strategic observation point within the medieval network.