The Roman ruins of Villa Cardillio (Portuguese: Ruinas romanas de Vila Cardílio) is an archaeological site located in central Portugal.

Situated in the rural civil parish of Santa Maria, it is located approximately 3 km from the centre of the municipal seat of Torres Novas.

[1] The first archaeological interest in the site occurred in 1932; Jalhay and Afonso do Paço began investigating the grounds, cataloguing the built-up environment.

[1] During subsequent excavations in 1963–1964 fragments of terra sigillata were discovered, that included various periods of fabrication: ceramic utensils (such as vases, plates and amphorae); metal objects (a bird, a bronze bell and fibula; and glass, ivory and bone.

[1] It is also an important villa that existed alongside the Roman towns of Santa Vitória do Ameixial and Torre de Palma, their mosaics comparable to those of Milreu and Conímbriga.

On one of these is the inscription: "VIVENTES / CARDILIUM / ETAVITAM / FELIXTURRE", while on another is a figure of a Roman couple, circled by craters, a sickle, birds, diametrically opposed 2x2 posts and with flowers in the corners.