Names distinctive to Ireland

The list of names unique to Ireland*

Female forenames

NameUniqueness Prevalence rank
1. Niamh 71% 1.
2. Aoife 86% 3.
3. Sinead 46% 4.
4. Aisling 69% 5.
5. Ciara 24% 2.
6. Orla 59% 6.
7. Eimear 79% 9.
8. Grainne 60% 8.
9. Caoimhe 82% 12.
10. Roisin 35% 7.
11. Mairead 50% 10.
12. Clodagh 71% 14.
13. Emer 34% 11.
14. Sinéad 96% 17.
15. Maeve 28% 13.
16. Brid 88% 18.
17. Caitriona 65% 16.
18. Saoirse 85% 19.
19. Nuala 33% 15.
20. Aideen 68% 22.
21. Sorcha 65% 21.
22. Áine 100% 26.
23. Orlaith 80% 25.
24. Majella 40% 20.
25. Siobhán 100% 31.

Male forenames

NameUniqueness Prevalence rank
1. Conor 34% 1.
2. Eoin 78% 5.
3. Niall 48% 2.
4. Ciaran 54% 4.
5. Declan 39% 3.
6. Colm 70% 6.
7. Paddy 56% 8.
8. Seamus 42% 7.
9. Cathal 77% 11.
10. Cian 48% 10.
11. Seán 95% 17.
12. Padraig 74% 15.
13. Dermot 46% 12.
14. Cormac 68% 16.
15. Donal 27% 9.
16. Darragh 39% 13.
17. Eamonn 42% 14.
18. Fergal 79% 20.
19. Eoghan 87% 21.
20. Oisin 88% 23.
21. Ger 40% 19.
22. Eamon 32% 18.
23. Diarmuid 74% 24.
24. Ciarán 95% 26.
25. Cillian 94% 27.

Surnames

NameUniqueness Prevalence rank
1. Byrne 28% 1.
2. Dunne 34% 2.
3. Kavanagh 36% 3.
4. Keane 27% 5.
5. Whelan 24% 4.
6. Keogh 33% 6.
7. Brien 29% 7.
8. Moloney 28% 8.
9. Lawlor 29% 10.
10. Coughlan 36% 16.
11. Phelan 21% 9.
12. Hennessy 21% 11.
13. Mcloughlin 21% 12.
14. Mcdonagh 30% 17.
15. Kinsella 28% 15.
16. Kirwan 35% 20.
17. Gleeson 23% 13.
18. Mahony 36% 22.
19. Carthy 54% 37.
20. Treacy 40% 29.
21. Kelleher 21% 14.
22. Kiely 32% 21.
23. Apa 27% 18.
24. Farrelly 35% 26.
25. Horgan 30% 25.

Distinctive names in
the related** countries

CountrySimilarity
Australia 61%
United Kingdom of Great Britain and Northern Ireland (the) 59%
New Zealand 56%
United States of America (the) 51%
Isle of Man 36%
Guyana 29%

*The rank of the unique name is the geometric average of the name uniqueness and the name prevalence in the respective country. Name uniqueness is measured only by the exact grapheme form (not taking into account transliterational equivalents or phonetic similarities).

** Country similarity is the correlation of the relative frequency of the names shared by two countries (as measured by cosine similarity).