The province of Chieti (Italian: provincia di Chieti) is a province in the Abruzzo region of Italy. Its provincial capital is the city Chieti, which has a population of 53,163 inhabitants. The province has a total population of 392,763 inhabitants as of 2015 and spans an area of 2,599.58 square kilometres (1,003.70 sq mi), giving it a population density of 151.09 inhabitants per square kilometre.