Saint Féchín or Féichín (died 665), also known as Mo-Ecca, was a 7th-century Irish saint, chiefly remembered as the founder of the monastery at Fore (Fobar), County Westmeath. Sources for his life and legend include Irish annals, martyrologies, genealogies and hagiographical works. Of the two surviving medieval Lives, one was written in Latin, the other in Irish. The Latin Life was written c. 1400 by Augustine mac Graidín, who belonged to the Saints' Island on the southeastern shore of Lough Ree, south of the present-day village of Newtowncashel.