Nuno Alvites, also referred to as Nuno or Nuño Aloitiz[1][a] (fl.
1017 – 1028),[3] was a count of Portugal, a descendant of the first count, Vímara Peres[4] as the son of Count Alvito Nunes and Gontina.
His presence is recorded for the first time in 1017.
He appears in 1025 confirming a donation made by King Alfonso V of León to Nuno's brother, Pedro Alvites and again in that same year in another charter in which he states that he succeeded his father Alvito.
[3] He ruled the county with his spouse Ilduara Mendes, daughter of earlier count Menendo González,[3] until he was assassinated in 1028, the same year as the death of King Alfonso V.[5] Ilduara continued to rule the county, with her son Mendo, who was still a child, as regent after her husband's death.