Sheikh Hassan Abdullah Hersi al-Turki (Somali: Hassan Abdullah Hirsii al-Turki, Arabic: حسن عبد الله حرسي التركي الجامعة; c. 1944 – 27 May 2015) was a Somali Islamist leader of al-Itihaad al-Islamiya (AIAI) and later of the Islamic Courts Union (ICU).