Pereira is a surname in the Portuguese and Galician languages, well known and quite common, mostly in Portugal, Galicia, Brazil, other regions of the former Portuguese Empire, among Galician descendants in Spanish-speaking Latin America.
Origin: toponymic/natural world, from Latin pirum or pyrus (pear, pear-tree).
Started as a noble Christian toponym of the Middle Ages, taken from the feudal estate of Pereira, Portugal, which in Portuguese means 'pear tree'.
The variants of this name are more commonly found in other countries like Spain (Galicia) with different spellings such as Pereyra or Perera, Trinidad and Tobago, India (specifically between Goa and Kerala along the Konkan coast), Pakistan and Sri Lanka.
Many Portuguese immigrants to the United States, especially Massachusetts, chose to Americanize their surname into Perry.