Ceallaigh

Ceallaigh is a surname. Notable people with the surname include:


 * Royal House Ceallaigh
 * Fiachra Ó Ceallaigh O.F.M. (18 August 1933 –), an Irish Catholic Bishop
 * Gilla Ceallaigh Ua Cleirigh (dies 1003), king of Ui Fiachrach Aidhne
 * Giolla Ceallaigh mac Comhaltan (fl. 10th century), a member of the Uí Fiachrach Aidhne of south Galway
 * Mícheál Ó Ceallaigh (fl. late 19th century), an Irish scribe
 * Muircheartach mac Pilib Ó Ceallaigh (died 1407), Archbishop of Tuam and patron of An Leabhar Ua Maine
 * Philip Ó Ceallaigh, Irish short story writer living in Bucharest
 * Seán Ó Ceallaigh disambiguation page
 * Seán Ó Ceallaigh (Clare politician) (1896–1994), Irish Fianna Fáil politician
 * Tomás mac Muircheartaigh Ó Ceallaigh, O.P., Archbishop of Tuam, 1438 to 1441