Via Tiberina, Roman road in Lazio and Umbria, Italy

The Via Tiberina is an ancient Roman road that followed the right bank of the Tiber from Rome to Ocriculum in Umbria. Its route is now followed by the Strada provinciale 15/A Tiberina, which runs from Prima Porta through Riano, Castelnuovo di Porto, Capena, Fiano Romano, Nazzano, Torrita Tiberina, Filacciano and Ponzano Romano. Along the way lie the sanctuary of Lucus Feroniae and the Villa dei Volusii at Fiano Romano.

The route follows prehistoric sheep tracks along the right bank of the Tiber, and it is thought to have coincided with the Etruscan Via Campana, used from the 7th century BC to carry salt inland from the mouth of the Tiber. After Rome defeated Veii and its Faliscan and Capenate allies in the 4th century BC, the road was re-laid with a modified, straighter course, such as the straight section between Scorano and Fiano Romano. It lost part of its importance when the Via Flaminia was built around 220 BC but remained a fast and safe route for local traffic and river navigation support.

The road's name comes from the Tiber, whose right bank it follows. Until the mid-1800s the route was called via del Tiro or strada per l'Alaggio: rope teams, the pilorciatori from the 6th century, hauled boats upstream from the Tiber mouth to Orte. The straight Scorano–Fiano Romano section still matches the Roman line.

Today the route corresponds to Strada Provinciale 15/A Tiberina, running from Prima Porta through Riano, Castelnuovo di Porto, Capena, Fiano Romano, Nazzano, Torrita Tiberina, Filacciano and Ponzano Romano. The straight stretch between Scorano and Fiano Romano still follows the Roman alignment. The ancient Via Alzaia towpath along the Tiber, used to haul boats upstream, ran beside it.

The road splits into two branches near Civita Castellana where it crosses the Treja River, each heading in different directions. This junction point reveals how Roman engineers designed road networks to connect multiple regions at once.