| Ibn Yahhaf | |
| Governor of the Taifa of Valencia | |
| Reign: | Taifa of Valencia 1092–1094 |
| Predecessor: | Yahya al-Qadir |
| Successor: | Rodrigo Díaz de Vivar (El Cid) |
| Death Date: | 1095 |
| Death Place: | Valencia |
| Religion: | Islam |
Abu Ahmad Jaafar bin Abdullah bin Jahhaff al-Ma’afari or Ibn Yahhaf (died 1094) was a judge and was the last ruler of the Taifa of Valencia before it fell to El Cid in 1094.[1]
Ibn Jahhaff, previously a judge in the city of Valencia, became ruler of the Taifa of Valencia after instigating a popular revolt with support of the pro-Almoravid faction against his predecessor Yahya al-Qadir in 1092.[2] This triggered El Cid to invade and lay siege to the city of Valencia. After the fall of the city in June 17 1094,[3] Ibn Jahhaff was captured and executed, most likely by burning.