The Ponte Nomentano (called Pons Lamentanus during the Middle Ages) is a Roman bridge in Rome, Italy, which carried the Via Nomentana over the Aniene (Latin: Anio).

In antiquity, the Ponte Nomentano was located outside of the Aurelian Wall, at a distance of 3.9 km from the Porta Nomentana.

The imposing castle-like structure was constructed during a general overhaul of the bridge by Pope Nicholas V (1447–1455), after which minor repairs followed in 1461, 1470, and 1474.

The 31.30-meter-long superstructure of the Ponte Nomentano has, in essence, preserved its medieval character, while the dimensions of the bridge, which measure 60 m in overall length and 7.35 m in width, have remained practically unchanged since antiquity.

[8] The 15-meter-wide central arch clearly dates back to ancient times, it is presumed from the late Republic or early Augustan Principate, as indicated by its semi-circular shape and the execution of the travertine stonework.