Fernando Afonso of Portugal was the twelfth Grand Master of the Knights Hospitaller, serving between 1202–1206. He was the oldest son of Afonso Henriques, the first king of the Kingdom of Portugal. Fernando would never inherit the crown as he was born out of wedlock. He formally succeeded the interim Grand Master Pierre de Mirmande installed after the death of Geoffroy de Donjon. He resigned in 1206 and was succeeded by Geoffroy le Rat.
- Occupation
- warrior monk
- Position held
- Grand Master of Sovereign Military Hospitaller Order of St John of Jerusalem, Alferes-mor de Portugal
- Citizenship
- Kingdom of Portugal
- Born