From the experts:
Colm is a popular Baby-Names-for-Boys">Irish name for boys that could immigrate, especially with its peaceful meaning. Colm Toibin is a contemporary Irish novelist and critic, author of The Master and Brooklyn; Colm Meaney is an Irish actor. Pronunciation is two syllables instead of one, like Colin with an 'm' at the end. Colm is related to Columba, Colom, Colum, Callum, and Malcolm.