Oliveira Family History
Oliveira Name Meaning
Portuguese and Galician: habitational name from any of numerous places called Oliveira from Portuguese and Galician oliveira ‘olive grove’ (from Late Latin olivarius a derivative of Latin oliva ‘olive’) or a topographic name from this word. Compare De Oliveira . Jewish (Sephardic): adoption of the Iberian surname (see 1 above) at the moment of conversion to Roman Catholicism. After the return to Judaism (generations later) some descendants retained the name their families used as Catholics.
Source: Dictionary of American Family Names 2nd edition, 2022