Abu Muhammad ar-Rashid Abd al-Wahid (Arabic: أبو محمد الرشيد عبد الواحد بن المأمون; Abū Muḥammad Ar-Rashīd `Abd al-Wāḥid ibn Al-Mā'mūn; died 4 December 1242) was an Almohad caliph who reigned from 1232 until his death.
He was not able to oust Yahya from Marrakesh, while the Emir of Tlemcen become independent from 1236 (founding the Zayyanid dynasty), following the example of the Hafsid ruler Abu Zakariya Yahya in Tunisia.
Due to unrest in the southern part of the caliphate, he had to turn his attention away from recapturing Marrakesh and Tlemcen and focused on quelling the rebellions in the southern Sahara realm of the caliphate.
He campaigned against the rebels in the Sahara decisively crushing them and ending their rebellion in 1239.
However, Abd al-Wahid was discovered drowned in a pool (or he died from a fall) in his palace in December of the same year.