Root form: Fiach
Irish-language surnames
Ó Fiaich, Uí Fhiaich, Ní Fhiaich
Male form
- Nominative
- Seán Ó Fiaich
- Genitive
- Sheáin Uí Fhiaich
- Vocative
- a Sheáin Uí Fhiaich
Wife form
- Nominative
- Síle Uí Fhiaich
- Genitive
- Shíle Uí Fhiaich
- Vocative
- a Shíle Uí Fhiaich
Daughter form
- Nominative
- Síle Ní Fhiaich
- Genitive
- Shíle Ní Fhiaich
- Vocative
- a Shíle Ní Fhiaich
English-language surnames
- Foy
- Fee
- Hunt
- Hunter