Peatsaí Ó Callanáin was an Irish poet.

Younger brother of Marcas Ó Callanáin

Marcas Ó Callanáin

Marcas Ó Callanáin , Irish poet was born at Carheendiveane, Craughwell, County Galway, Ireland. He was the elder brother of Peatsaí, also a poet. Educated at the local school, he could speck Irish and English...

, Peatsaí is said to have been the better known of the two. He attended a local school in Craughwell

Craughwell

Craughwell is a village and townland in County Galway, Republic of Ireland. The name is also used as a surname, properly Ó Creachmhaoil, though often anglicised as Craughwell and Crockwell...

, and later attended one or both the schools of Anthony O'Brien at Athenry

Athenry

Athenry is a town in County Galway, Ireland. It lies east of Galway city, and one of the attractions of the town is its medieval castle. The town is also well-known by virtue of the song "The Fields of Athenry".-History:...

, or of the (Dominican

Dominican Order

The Order of Preachers , after the 15th century more commonly known as the Dominican Order or Dominicans, is a Catholic religious order founded by Saint Dominic and approved by Pope Honorius III on 22 December 1216 in France...

) Brothers at Esker

Esker

An esker is a long winding ridge of stratified sand and gravel, examples of which occur in glaciated and formerly glaciated regions of Europe and North America...

.

He was for a time a rival of Antoine Ó Raifteiri

Antoine Ó Raifteiri

Antoine Ó Raifteiri was an Irish language poet who is often called the last of the wandering bards.-Biography:...

but they later became good friends.

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