Mahmoud Da'as (e mohiotia ana hoki e tana "kunya" Abu Khalid; 1934 <unk> 2009) he rangatira rangatira o te Palestine Liberation Organization (PLO), e mahi ana hei mema roa o te Fatah's Revolutionary Council me te Supreme Military Council. I whanau mai i te raki o Palestine, i tipu ake a Da'as i Horano i uru ai ia ki nga Ripoata o Horano (JAF). I whakaakona ia hei kaipūkaha hōia, i te mutunga ka tohua ia hei koromatua tuarua me te rangatira o te 2 o nga Rōpū Hangarau o Horano. I uru atu a Da'as ki te PLO i te tau 1967, a, i wehe atu ia i te JAF i te marama o Mahuru o Mahuru
o te tau 1970. Na reira ka eke ia i roto i nga rarangi o te PLO, a ka waiho hei rangatira nui o te ope taua i roto i te pakanga Arab-Israeli, i uru atu ki nga miihana i Repanona, Yemen, Sudan, me Uganda. Whai muri i te Whakaaetanga Oslo I, ka noho a Da'as hei kaitohutohu hoia a te Perehitini a Yasser Arafat me te kaitohutohu i te Kaunihera Ture o Palestine.