Petrescu is a patronymic family name common in Romania, meaning "son of Petre". Notable people with this surname include:
Anca Petrescu, architect and politicianArcadie Petrescu, neurologistBarbu Petrescu, mayor of Bucharest (1989–1990)Camil Petrescu, writerCezar Petrescu, writerConstantin Titel Petrescu, social-democratic politicianCostin Petrescu, painterCostin Petrescu, rock music drummerCristian Petrescu, politicianDan Petrescu, football (soccer) playerDaniela Petrescu, long-distance runnerEmil Petrescu, mayor of Bucharest (1914-1916; 1918)Emilia Petrescu, sopranoGhenadie Petrescu, deposed Romanian Metropolitan PatriarchGică Petrescu, singerHoria Petra-Petrescu, literary criticMarian Petrescu (born 1970), Romanian jazz pianistNicolae Petrescu (1886–1954), philosopher and sociologistNicolae Petrescu-Comnen, diplomat and politicianNicolae Petrescu Găină, painterTeodosie Petrescu, Archbishop of TomiVirgil Petrescu, politicianZaharia Petrescu, physicianIt is also the maiden name of:
Elena Ceaușescu, communist politician and wife of Nicolae CeaușescuRodica Mateescu, triple jumper