Commán of Roscommon or Coman mac Faelchon (son of Faelchon) was an Irish saint, the founder, abbot and bishop of Roscommon, fl.
[1] He was a member of the Cinel Domaingen, a branch of the Sogain of Connacht.
About 550, after completing his education, he founded a monastery on the east bank of the River Suck, at a wood (ros) which was called after him (Ros Comain).
He successfully sought their patronage, ensuring his influence within their spheres of power.
He composed a rule for monks, which came to be observed by many religious bodies in Connacht.