Osama Maarouf Saad (or Oussama Saad, Arabic: أسامة معروف سعد; born June 6, 1954, in Saida), is a Lebanese politician, MP,[1] and the leader of the Popular Nasserist Organization (PNO) movement,[2][3][4] founded by his father Maarouf Saad,[5] a leftist politician and mayor of Sidon whose violent assassination in 1975 helped spark the Lebanese Civil War.[6] Osama’s family is a prominent Sunni Muslim family in Sidon,[7] but he aligns himself with the Shiite Hezbollah[8][9] and the Iran-led “axis of resistance”.[10] He was subject to Hezbollah's online threats in 2021 after his PNO condemned the assassination of the anti-Hezbollah Lokman Slim.[11]