Cerlongo Castle, Medieval castle in Cerlongo, Italy.

Cerlongo Castle, also known as Villa Magnaguti, is an old stronghold in Cerlongo, a hamlet of Goito in the province of Mantua. It keeps its original layout along with medieval buildings and defensive works, among them three towers and perimeter walls. Its construction date is unknown, but it existed before the Duchy of Mantua.

The castle's construction date is unknown, but it predates the Duchy of Mantua. It belonged to the noble Cocastelli and Magnaguti families; the Magnaguti moved from Polesine to the Mantua area in the 16th century. A plaque in one room records that King Vittorio Emanuele II stayed there on 25 June 1866.

The castle is also called villa Magnaguti, after the noble Magnaguti family that owned it and moved from Polesine to the Mantua area in the 16th century; it had earlier belonged to the Cocastelli. In a hall, a plaque records that King Vittorio Emanuele II stayed there on 25 June 1866.

The municipality of Goito manages the castle and opens it throughout the year for community events and activities. Visitors should check ahead as access may vary depending on the event schedule at any given time.

The castle's construction date is unknown, but it existed before the Duchy of Mantua. The Gonzaga dukes came to Cerlongo for its orchards, above all the cherry trees, a detail that ties the fortress to the ruling family's visits.