Mocán was a medieval Irish saint. He established Teampall Inis Adhaimh (now Barraderry Church) south-east of Carraroe, Connemara. Very little seems to be known of him, other than that he lived in the Middle Ages.
References A Guide to Connemara's Early Christian Sites, Anthony Previté, Oughterard, 2008.
See also Leo of Inis Airc Ríoch Kerrill Brendan