Nabão River

The Nabão is a river in Portugal. It rises in Ansião and passes through the city of Tomar before joining the Zêzere River — a course of about 66 km. It was known to the Romans as Nabanus. The swift waters of the Nabão once fed the factories of Tomar.

The river is associated with the tale of Santa Iria.

In 2013, development work in Tomar includes construction of road and foot bridges, promenades and gardens.