DO
/DAY-oh/Denominacion de Origen - Spanish wine appellation system.
Full Definition
DO (Denominacion de Origen) is Spain's regulated wine appellation system, equivalent to French AOC. It defines geographic boundaries, permitted grapes, yields, and winemaking practices. Higher tiers include DOCa/DOQ (Rioja, Priorat) and Vino de Pago for single estates. Below DO are IGP and table wine categories.