The Octagonal Latrine in the Villa Romana del Casale is located behind the Hall of Arion and the Great Hall, near the Aqueducts. It is detached from the rest of the villa.
The latrine is a small octagonal building. It has five seats on five of the sides, a small basin on one side and entrance on another.
The central floor is covered with a monochrome mosaic. In top is a huge vase from which two long branches of ivy with several leaves extends. Two particularly large leaves are placed just at the entrance.