In which wine region is Sangiovese predominantly used as a grape variety?

Sangiovese is predominantly used as a grape variety in the Chianti Classico DOCG region, which is located in Tuscany, Italy. This region is renowned for its distinctive terroir, which, along with the various Sangiovese clones, contributes to the grape's ability to express different characteristics, such as vibrant acidity, red fruit flavors, and earthy notes.

Chianti Classico is recognized for producing high-quality wines that often feature Sangiovese as the dominant grape in its blends. The regulations for Chianti Classico require that the wine must contain a minimum percentage of Sangiovese, solidifying its significance in this prestigious wine region.

While Sangiovese might also appear in wines from other regions in Italy, its most notable and defining expressions come from Chianti Classico, making it the clear choice when identifying where Sangiovese is predominantly used.