Most Common Surnames in Ireland

Below are the 100 most common surnames in Ireland for the 1901 census. The equivalent list is also available for each province:

Numbers in brackets represent the total number of people in Ireland in 1901 with this surname. Note that different spelling combinations are not combined, so for example Smith and Smyth are list separately.

1. Murphy (56648)

2. Kelly (46480)

3. Walsh (35358)

4. Ryan (30795)

5. Sullivan (30239)

6. Byrne (28224)

7. Doyle (20636)

8. Reilly (19682)

9. Gallagher (19599)

10. Lynch (18121)

11. Kennedy (18059)

12. Doherty (17827)

13. Murray (17714)

14. Smyth (16817)

15. Quinn (15929)

16. Moore (15417)

17. Smith (15139)

18. Brennan (14700)

19. Connor (14637)

20. Burke (14468)

21. Daly (14241)

22. Wilson (14240)

23. Campbell (14120)

24. Carroll (14079)

25. Martin (13840)

26. Clarke (13684)

27. OBrien (13608)

28. Flynn (13560)

29. Collins (13372)

30. Johnston (13025)

31. Fitzgerald (12850)

32. Farrell (12629)

33. Dunne (12100)

34. Duffy (11894)

35. Nolan (11815)

36. Hughes (11720)

37. Connolly (11715)

38. Brown (11663)

39. Thompson (11533)

40. Power (11110)

41. Boyle (10814)

42. Moran (10690)

43. Brady (10680)

44. Healy (10461)

45. McCarthy (10433)

46. White (10200)

47. Hayes (9991)

48. Fitzpatrick (9977)

49. Maguire (9593)

50. Barry (9495)

51. Casey (9310)

52. Donovan (9247)

53. Ward (9214)

54. Foley (9168)

55. Keane (8989)

56. Kenny (8880)

57. Donnelly (8873)

58. Stewart (8754)

59. Cunningham (8729)

60. Sweeney (8677)

61. Robinson (8490)

62. Graham (8484)

63. Mc Carthy (8460)

64. Kavanagh (8443)

65. Connell (8409)

66. Shea (8371)

67. Brien (8220)

68. Whelan (8203)

69. Mahony (8077)

70. Hamilton (8055)

71. OConnor (7972)

72. Lyons (7738)

73. Higgins (7737)

74. Griffin (7730)

75. Scott (7698)

76. King (7670)

77. Maher (7616)

78. Callaghan (7565)

79. Hogan (7467)

80. Burns (7395)

81. Browne (7270)

82. Bell (7234)

83. Cullen (7224)

84. Egan (7203)

85. ONeill (7143)

86. Curran (7069)

87. ODonnell (7056)

88. Roche (7041)

89. Neill (6977)

90. Sheehan (6892)

91. Reid (6882)

92. Conway (6842)

93. Anderson (6799)

94. Buckley (6787)

95. Flanagan (6765)

96. Cronin (6556)

97. Allen (6509)

98. Dwyer (6469)

99. Regan (6253)

100. Taylor (6196)