Castel di Sangro (locally Caštiéllë) is a city and comune of 6,461 people (as of 2013) in the Province of L'Aquila, in Abruzzo, central Italy.

Neighbouring towns include Roccaraso, Pescocostanzo, Rivisondoli, San Pietro Avellana and Montenero Val Cocchiara.

In the Second World War, the city was liberated by the West Nova Scotia Regiment of the First Canadian Division in November 1943.

The Canadians attacked a second time on November 24 supported by a heavy artillery bombardment which forced the Germans to withdraw, allowing the regiment to occupy the monastery without losses bringing Castel di Sangro and the south bank of the Sangro River into Allied hands.

The club now plays at Abruzzo's Promozione level, five levels below Serie B. Castel di Sangro is divided into six districts: Castel di Sangro has for years been a transit point for many people, because of its location making it the gateway into Abruzzo.