The Roman Ruins of Pisões (Portuguese: Ruinas Romanas de Pisões), is an important Roman villa rustica located in the civil parish of Beja (Santiago Maior e São João Baptista) in the municipality of Beja, in the Portuguese Alentejo, classified as a Imóvel de Interesse Público (Property of Public Interest).

A small altar, to the invocation of the goddess Hygieia, suggest the name of the family that occupied the residence, the Gaio Atílio Gordo clan.

[1] The building belonged to an agricultural enterprise, that supplied the Roman city of Pax Julia (today Beja) from the 1st to the 4th centuries with foodstuffs.

[2] They included the apodyterium (where people would practice exercises), the laconicum (or sauna), the strigilus (where residents would scrub dirt and oils from their bodies), the caldarium (where they would bath in a warm pool) and, finally, the tepidarium or frigidarium (where they would repose).

[1] The extremes are terminated by semi-circular caldarium over arches supporting columns, round the rectangular tank with a five degree incline access.

The dam closes a hydrological basin that extends to Beja, covering an area of 18.6 square kilometres (7.2 sq mi).