Michael de Monymusk († 1376) was a 14th-century bishop of Dunkeld.
While dean of Dunblane, he held prebends in the bishopric of Brechin and the bishopric of Ross, and while holding the deanery of Glasgow, petitioned Pope Urban V for a vacant prebend and canonry in Aberdeen.
Pope Urban V appointed him to the bishopric of Dunkeld on 13 November 1370.
He may have held the position of Chamberlain of Scotland.
He died on 1 March 1376, and was buried in the choir of Dunkeld Cathedral.