Dom Duarte de Menezes, was a 15th-century Portuguese nobleman and military figure. Duarte de Menezes was the 3rd Count of Viana do Alentejo, 2nd Count of Viana, Lord of Caminha and the first Portuguese captain of Alcácer-Ceguer.
- Occupation
- official, military officer, politician
- Position held
- Alferes-mor de Portugal, Governor of Ceuta, Governor of Ceuta, capitão de Alcácer Ceguer
- Citizenship
- Kingdom of Portugal
- Born
- 1414
- Died