Submitted NameRevisions Save Type Surname (from given name) Usage Irish Other Forms FormsÓ Catharnaigh, Kearney Edit Status Status [show contributorshide contributors] Added 3/11/2017 by LMS Edited 5/3/2019 by SeaHorse15 Meaning & History Means "descendant of Cearnach" in Irish Gaelic. Compare Kearney, Ó Ceithearnaigh.