'''Fiallo''' is a surname. Notable people with the surname include:
*Cyrina Fiallo, American actress *Delia Fiallo (1924–2021), Cuban author and screenwriter *Fabio Fiallo (1866–1942), Dominican writer, poet and politician *Gregorio Fiallo (born 1952), Cuban swimmer *Larimar Fiallo (born 1983), Dominican beauty pageant titleholder *Viriato Fiallo (1895-1983), Dominican doctor and politician
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