Ugo Pirro was an Italian screenwriter.
Born Ugo Mattone in Salerno, he debuted as screenwriter for director Carlo Lizzani.
His screenplays of the 1970s include films Indagine su un cittadino al di sopra di ogni sospetto and Il giardino dei Finzi-Contini, for which he won two Academy Awards as Best Foreign Film. Pirro was also a literature author, his most notable works being Le soldatesse, set in the Italian occupation of Greece during World War II, and Celluloide, adapted for cinema by Lizzani in 1996.
He died in Rome in 2008.