The Era is a river in Tuscany in Italy. It rises near Volterra and flows into the Arno river at Pontedera.

Era
The Era as it passes Pontedera.
Location
Country	Italy
Physical characteristics
Mouth	Arno
• location	Pontedera
• coordinates	43°39′57″N 10°38′00″E / 43.6658°N 10.6334°E / 43.6658; 10.6334
Length	54 km (34 mi)
Basin features
Progression	Arno→ Tyrrhenian Sea

The Era is 54 km long, and its main tributaries are: (to the left) Cascina river, Ragone torrent, Sterza torrent, and (to the right) Capriggine torrent and Roglio torrent.

In 1966 the river flooded the town of Pontedera.