Abu al-Razi Muhammad ibn Abd al-Hamid (Arabic: أبو الرازي محمد بن عبد الحميد) (died 829) was a ninth century governor of the Yemen for the Abbasid Caliphate.
A mawla of the caliph al-Ma'mun (r. 813–833), Abu al-Razi was made deputy governor of Basra on behalf of Salih ibn al-Rashid in ca.
828 he was appointed by al-Ma'mun as governor of the Yemen, and he led an army to the province to deal with the rebel Ahmar al-'Ayn.
Upon his arrival in Sana'a he received a request from the rebel for amnesty, which was initially granted, but he subsequently decided to arrest Ahmar al-'Ayn and send him in irons to the caliph in Baghdad.
[2] Shortly after dealing with Ahmar al-'Ayn, Abu al-Razi was faced with another rebellion in the southern highlands of the country, by the Himyarite Ibrahim ibn Abi Ja'far al-Manakhi.