paragraph_text: Jahja al-Mu`tasim (arapski أبو زكرياء المعتصم يحي بن الناصر‎, Abū Zakarīyā' Al-Mu`taṣim Yaḥyā ibn An-Nāṣir) bio je almohadski kalif Maroka<ref>Pascal Buresi, Hicham El Aallaoui i Travis Bruce, Governing the empire: provincial administration in the Almohad Caliphate (1224-1269): critical edition, translation, and study of manuscript 4752 of the Hasaniyya Library in Rabat containing 77 taqadim ("appointments") koji je vladao od 1227. do 1229. Njegov je otac bio kalif Muhamed al-Nasir,<ref>Yahya al-Mutasim a brat Jusuf II.