Baix Cinca is an Aragonese comarca in the southeast extreme of the Huesca province in Spain.

Its capital is Fraga and it borders La Llitera /La Litera , Cinca Medio , Monegros and Bajo Aragón-Caspe /Baix Aragó-Casp in Aragon and Segrià and Ribera d'Ebre on the Catalan side.