Constitución is a city and commune of Talca Province, Maule Region, Chile. It was historically a popular seaside resort. However, following the growth of the industrial sector tourism has since declined. Constitución is a minor port in Chile.

The Maule Region is one of Chile's 16 first order administrative divisions. Its capital is Talca. The region derives its name from the Maule River which, running westward from the Andes, bisects the region and spans a basin of about 20,600 km2. The Maule river is of considerable historic interest because, among other reasons, it marked the southern limits of the Inca Empire.