Top 100 Irish Surnames

Welcome to the top 100 irish surnames.

The Top 100 Irish Surnames List

These are the top 100 Irish Surnames for 2025.

1. O'Hegarty
2. O'Molony
3. Walsh
4. Whelan
5. O'Neilan
6. MacNulty
7. O'Regan
8. Garvin
9. O'Mahony
10. O'Neill
11. O'Dolan
12. Kavanagh
13. O'Dwyer
14. MacCartan
15. Prendergast
16. MacEvenny
17. Forde
18. Walsh
19. Gaffney
20. Fitzpatrick
21. Murphy
22. Walsh
23. Caffrey
24. Coghlan
25. MacGee
26. Auliffe
27. Sullivan
28. Melville
29. O'Higgins
30. Murphy
31. Walsh
32. O'Fahy
33. Broderick
34. O'Hara
35. O'Hara
36. Ryan
37. O'Dorcey
38. Hanneen
39. O'Larcan
40. Keegan
41. O'Doherty
42. MacCormack
43. Muldowney
44. Walsh
45. O'Higgins
46. Kennedy
47. Meighan
48. O'Tracy
49. Fitzpatrick
50. O'Toole
51. O'Sullivan
52. Murphy
53. O'Dolan
54. MacGowan
55. Dalton
56. O'Sullivan
57. Walsh
58. O'Henry
59. Murphy
60. O'Sullivan
61. O'Hennessy
62. Duddy
63. O'Hea
64. MacQuillan
65. Laverty
66. Mongan
67. O'Dempsey
68. Caroll
69. O'Malone
70. MacHale
71. O'Henry
72. O'Byrne
73. Donlon
74. MacRory
75. MacMurrough
76. MacCabe
77. Murphy
78. Laverty
79. Haugh
80. Ryan
81. O'Mulligan
82. Higgins
83. O'Tierney
84. O'Hegarty
85. O'Hart
86. Egan
87. O'Broder
88. Muldowney
89. O'Mara
90. MacGrath
91. Harrington.
92. Morris
93. O'Mulligan
94. O'Lennon
95. Rogers
96. O'Gara
97. MacBreen
98. Davin
99. Allen
100. Darcy

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