Andautonia, Roman archaeological site in Ščitarjevo, Croatia.

Andautonia is a Roman archaeological site in Šćitarjevo, southeast of Zagreb, on the southern bank of the Sava. Excavations since 1981 have uncovered streets, a sewer system, city walls, a necropolis and a thermal complex with a water supply and underfloor heating. The site is laid out as an irregular hexagon and is managed by the Archaeological Museum in Zagreb.

Andautonia was founded in the 1st century AD on the Sava's southern bank, on the Roman road between Siscia (Sisak) and Poetovio (Ptuj). It became a municipium and served as the administrative, political and cultural centre of this part of Pannonia for about 300 years. It is believed to have been destroyed during the Great Migration, by the end of the 4th century.

The settlement served as a crossroads where merchants and traders from across the empire brought goods and ideas together. The objects found here reveal how connected this place was to distant regions and trading networks.

The site can be explored on foot, with paths that are relatively well-maintained and situated in relatively flat terrain. Comfortable shoes are recommended since the area covers substantial ground and paths can become uneven when wet.

Beneath some buildings lie remains of a hypocaust system, a Roman heating method where hot air circulated beneath floors. These underground passages reveal how people then sought comfort and technical solutions to everyday problems.