Root form: Ciarán
Irish-language surnames
Ó Ciaráin, Uí Chiaráin, Ní Chiaráin
Male form
- Nominative
- Seán Ó Ciaráin
- Genitive
- Sheáin Uí Chiaráin
- Vocative
- a Sheáin Uí Chiaráin
Wife form
- Nominative
- Síle Uí Chiaráin
- Genitive
- Shíle Uí Chiaráin
- Vocative
- a Shíle Uí Chiaráin
Daughter form
- Nominative
- Síle Ní Chiaráin
- Genitive
- Shíle Ní Chiaráin
- Vocative
- a Shíle Ní Chiaráin
English-language surnames
- Kieran
- Kierans
- McKieran
- Kearns
Alternative English-language surnames
- Kerins
- Kerin