Male form
- Nominative
- Seán Ó hEochaidh
- Genitive
- Sheáin Uí Eochaidh
- Vocative
- a Sheáin Uí Eochaidh
Wife form
- Nominative
- Síle Uí Eochaidh
- Genitive
- Shíle Uí Eochaidh
- Vocative
- a Shíle Uí Eochaidh
Daughter form
- Nominative
- Síle Ní Eochaidh
- Genitive
- Shíle Ní Eochaidh
- Vocative
- a Shíle Ní Eochaidh
Male form
- Nominative
- Seán Mac Eochaidh
- Genitive
- Sheáin Mhic Eochaidh
- Vocative
- a Sheáin Mhic Eochaidh
Wife form
- Nominative
- Síle Mhic Eochaidh
- Genitive
- Shíle Mhic Eochaidh
- Vocative
- a Shíle Mhic Eochaidh
Daughter form
- Nominative
- Síle Nic Eochaidh
- Genitive
- Shíle Nic Eochaidh
- Vocative
- a Shíle Nic Eochaidh
Male form
- Nominative
- Seán Mag Eochaidh
- Genitive
- Sheáin Mhig Eochaidh
- Vocative
- a Sheáin Mhig Eochaidh
Wife form
- Nominative
- Síle Mhig Eochaidh
- Genitive
- Shíle Mhig Eochaidh
- Vocative
- a Shíle Mhig Eochaidh
Daughter form
- Nominative
- Síle Nig Eochaidh
- Genitive
- Shíle Nig Eochaidh
- Vocative
- a Shíle Nig Eochaidh