Letter - M
21. MAC AN BHREATANNAICH - ( gaelic, male ) son of the Briton
22. MAC AN T-SAOIR - ( gaelic, male ) son of the carpenter
23. MAC AN TSAGAIRT - ( gaelic, male ) son of the prelate
24. MAC ARTUIR - ( gaelic, male ) son of Arthur
25. MAC ASGAILL - ( gaelic, male ) son of Asgaill
26. MAC BHEATHAIN - ( gaelic, male ) son of the man who lives by the clear stream
27. MAC BHRIAIN - ( gaelic, male ) son of the strong
28. MAC DARAICH - ( gaelic, male ) son of the man from the ford by the oak trees
29. MAC GHILLE AINDREIS - ( gaelic, male ) son of the one who served the manly one
30. MAC GHILLE MHICHEIL - ( gaelic, male ) son of the one who served Saint Michael
31. MAC GHILLE-BHUIDHE - ( gaelic, male ) son of the one who serves the blond
32. MAC GHILLE-DHUIBH - ( gaelic, male ) son of the one who serves the dark man
33. MAC GHILLE-DHUINN - ( gaelic, male ) son of the one who serves Brown
34. MAC GHILLE-EASPUIG - ( gaelic, male ) son of the one who serves the sacred and bold
35. MAC GHILLE-LAIDER - ( gaelic, male ) son of the one who serves the strong armed
36. MACAIRE - ( greek, male ) blessed
37. MACAWI - ( native, female ) Sioux name meaning " generous."
38. MACCUS - ( celtic, male ) hammer
39. MACCUS - ( anglo, male ) son of Gus
40. MACHAKW - ( native, male ) Hopi name meaning " horny toad."