Norcia (Italian pronunciation: [ˈnɔrtʃa]), traditionally known in English by its Latin name of Nursia (/ˈnɜːrsiə, ˈnɜːrʃ(i)ə/), is a town and comune in the province of Perugia (Italy) in southeastern Umbria.

Unlike many ancient towns, it is located in a wide plain abutting the Monti Sibillini, a subrange of the Apennines with some of its highest peaks, near the Sordo River, a small stream that eventually flows into the Nera.

On 24 August 2016, a magnitude 6.2 earthquake and numerous strong aftershocks struck near Norcia, causing major damage to the towns in the region.

On 30 October 2016, another magnitude 6.5 earthquake rocked Norcia, causing heavy damage to the city: among other buildings, the nave of the Basilica of St. Benedict was destroyed.

After the earthquake of 22 August 1859, the Papal States, to which Norcia then belonged, imposed a stringent construction code forbidding structures of more than three storeys and requiring the use of certain materials and building techniques.

On via Umberto is a small aedicule or corner chapel, sometimes called a tempietto, with faded frescoes, painted by Vanni della Tuccia in 1354.

It holds some works by Flemish masters, a richly decorated altar by Duquesnoy, a Madonna and Saints by Pomarancio, and a St Vicent Ferrer and the Sick (1756) by Giuseppe Paladini.

San Francesco, from the same century has a notable portal, surmounted by a Gothic rose window, with pink and white stone decorations.

A fortress, the Castellina was built in 1555–1563 as the residence of the Papal governors, as designed by Giacomo Barozzi da Vignola.

Agriano, Aliena, Ancarano, Biselli, Campi, Casali di Serravalle, Case sparse, Castelluccio, Cortigno, Forca Canapine, Forsivo, Frascaro, Legogne, Monte-Cappelletta, Nottoria, Ocricchio, Ospedaletto, Pescia, Pie' la rocca, Piediripa, Popoli, San Marco, San Pellegrino, Sant'Andrea, Savelli, Serravalle, Valcaldara.