Vinho do Porto DOC covers fortified wines from the northeastern province of Trás-os-Montes e Alto Douro in the Douro region of Portugal. It is named after the city of Porto or Oporto. The unfortified wines fall under the Douro DOC.

Wineries

Certified organic: Casal dos Jordões.| Maritavora. | Quinta do Romeu. 

No certification: Morgadio da Calçada.