Muiredach mac Domnaill Midi (died 802) was a King of Uisnech in Mide of the Clann Cholmáin.
The period between the death of Donnchad Midi and the accession of his son Conchobar mac Donnchado in 803 was a time of civil strife and confusion amongst the Clann Cholmáin.
That same year the high king Áed Oirdnide of the Cenél nEógain invaded Meath and defeated Clann Cholmáin at the Battle of Druim Ríg.
[2] Áed went on to devastate Meath which submitted to him and the beginning of his high kingship is considered to have occurred from that point on.
[3] In 799 Domnall mac Donnchada Midi was assassinated by his own kinsmen and Muiredach became King of Mide.