Residents of Faeto and neighbouring Celle di San Vito are speakers of Faetar, a daughter language of the Franco-Provençal language, which is found in an Alpine region spanning northwestern Italy, southeastern France and southwestern Switzerland.
People residing in Faeto and surrounding Celle di San Vito use Faetar, a dialect of the Franco-Provençal language, which is prevalent in an Alpine area that stretches across northern Italy, southern France, and western Switzerland.