Mathghamhain Ó hIfearnáin, early modern Irish poet, fl. 1585.
Ó hIfearnáin was living in the Shronell district of County Tipperary in the late 16th century, and wrote poems on the decline of the profession of poetry. His most well-known poem, Ceist! Cia do cheinneóchadh dán? describes his journey across Munster in search of a buyer for a well-wrought poem. Another is A mhic, ná meabhraigh éigse.