Sheikh Ishaaq bin Ahmed bin Muhammad bin al-Hussein al-Hashimi, more commonly known as Sheikh Ishaaq or Sheikh Isaaq (Arabic: الشيخ إسحاق بن أحمد بن محمد الهاشمي‎, romanized: Ash-Shaykh Isḥāq bin Aḥmad bin Muḥammad al-Hāshimīy, Somali: Sheekh Isxaaq) was the semi-legendary Arab forefather of the Somali Isaaq clan-family in the Horn of Africa, whose traditional territory is wide and densely populated.[5][6][7][8]