Salah Mesbah Khalaf (Arabic: صلاح مصباح خلف, romanized: Ṣalāḥ Maṣbāḥ Ḵalaf), also known as Abu Iyad (Arabic: أبو إياد, romanized: ʾAbū ʾIyād) (31 August 1933 – 14 January 1991), was a Palestinian militant and the deputy chief and head of intelligence for the Palestine Liberation Organization. He was the second most senior official of Fatah after Yasser Arafat.