Root form: Preastún
Irish-language surnames
Preastún, Preastún
Male form
- Nominative
- Seán Preastún
- Genitive
- Sheáin Preastún
- Vocative
- a Sheáin Preastún
Female form
- Nominative
- Síle Preastún
- Genitive
- Shíle Preastún
- Vocative
- a Shíle Preastún
Alternative Irish-language surnames
Priostún, Priostún
Male form
- Nominative
- Seán Priostún
- Genitive
- Sheáin Priostún
- Vocative
- a Sheáin Priostún
Female form
- Nominative
- Síle Priostún
- Genitive
- Shíle Priostún
- Vocative
- a Shíle Priostún
English-language surnames
- Preston