The C-12 is a highway in Catalonia, Spain, that connects Lleida with Tortosa and the Ebre river delta. For much of its length it runs along the lower Ebre valley. North of Lleida the road follows the Noguera valley before joining the C-13.

Autovia C-12 cuts across the westernmost end of the Cardó Massif, above the final Ebro Gorges. This highway is also known as the Eix de l'Ebre (Ebro Axis).

• Autovia C-13

• Coves de Benifallet, access
• Miravet, situation and access

40°51′38″N 0°30′29″E / 40.86056°N 0.50806°E / 40.86056; 0.50806