Hermenegildo Alóitez (c. 898 – before 10 December 966), was a magnate and member of the highest nobility of Galicia in the 10th century.

His parents were Count Aloito Gutiérrez and Argilo Alóitez, daughter of Alóito and Paterna, the founders of the monastery of San Nicolao de Cis [gl] in the territory of Nendos, A Coruña.

A paternal uncle was Count Hermenegildo Gutiérrez, who defeated the Muslim troops and conquered Oporto and Coimbra and was the father of Queen Elvira Menéndez, wife of King Ordoño II, and grandfather of Saint Rudesind, of Queen Adosinda Gutiérrez, the first wife of King Ramiro II, and of Count Osorio Gutiérrez the founder of the Monastery of Lourenzá.

[9] In 958, Hermenegildo and Paterna transferred the county of Présaras to the monastery which they had founded and,[10] in that same year, he retired there where he lived as a monk the rest of his life.

[7] He married Paterna Gundesíndiz (died before December 955), daughter of Gundesindo and Senior, with whom he appears in 916 buying certain properties.