Coordinates: 41°51′19″N 12°27′10″E / 41.8552387°N 12.452901°E
Portuense is the 11th quartiere (neighbourhood) of Rome (Italy), identified by the initials Q.XI.
The toponym is also used to indicate the urbanistic area 15b of the Municipio Roma XV. The population of the urbanistic area amounts to 30.362 inhabitants.
There is also a suburbio (suburb) with the same name, identified by the initials S.VII.
The Quartiere is in the southern area of the town, close to the Aurelian walls and the river Tiber.
Its borders are:
Portuense is one of the first 15 Quartieri born in 1911 and officially established in 1921; it took its name from the ancient Via Portuense.