The Via Sublacensis was a Roman road constructed to connect Nero's palace (the Villa Sublacensis) in present-day Subiaco to Rome, splitting off from the Via Valeria near Varia (modern Vicovaro), about 10 km northeast of Tivoli.

It is most commonly referred to as the origin of the Anio Novus, a major aqueduct whose head was originally at the 28th milestone of the Via Sublacensis.

• This article incorporates text from the Encyclopædia Britannica, Eleventh Edition, a publication now in the public domain.