Al-Mu'ayyad Muhammad (died February 25, 1503) was an imam of the Zaidi state in Yemen who ruled in parts of the Yemeni highland including San'a in 1462–1503.
At this time the Yemeni highland was contested between several imams, most prominently al-Mutawakkil al-Mutahhar who lost San'a to the Tahiride Dynasty in July 1462.
Al-Mu'ayyad Muhammad, who had proclaimed his imamate on the death of his father, moved to bring back the important city within the Zaydiyyah fold.
In 1464, his officer Muhammad bin Isa Sharib tricked his way into San'a by impersonating the Tahiride governor, who bore the same name.
[2] After five months Sultan Amir burnt the equipment that could not be brought along and retreated, defeating a pursuing Zaidi force.