Colman Ua Clasaigh (died 661) was an Irish tutor and poet. Colman was "the tutor of Cumméne Fota", Bishop of Clonfert, who died in November 661. The Annals of the Four Masters reproduce three versed that he composed in memory of Cummene: The same annals, in an immediately succeeding note, state "St. Colman Ua Cluasaigh, died."