Marcas Ó Callanáin

Marcas Ó Callanáin (1789–1846) was an Irish poet.

He was born at Carheendiveane, Craughwell, County Galway, Ireland and was the elder brother of Peatsaí, also a poet.

Educated at the local school, he could speak Irish and English.

His most well-known work is the love poem, Máire Brún.

In 1967, Seán Ó Ceallaigh - principal of Craughwell National School - produced an edition of their poems.