Top 50 Common Vietnamese Surnames

UPDATE 2018-09-22: Links to my Master's thesis (the "project" mentioned below) are here:

Spatial Little Saigon: Mapping an ethnic community, Hamatake, Ben, M.A., CALIFORNIA STATE UNIVERSITY, FULLERTON, 2014, 72 pages

Spatial Little Saigon: Mapping an ethnic community, Map Appendices

I'm doing some research for a project at school and ran into this tidbit. Thought I'd share:

1. Nguyễn


2. Trần


3. Lê


4. Phạm


5. Huỳnh


6. Vũ


7. Phan


8. Trương


9. Hoàng


10. Ngô


11. Đặng


12. Đỗ


13. Bùi


14. Võ


15. Lý


16. Dương


17. Lương


18. Đinh


19. Trịnh


20. Lưu


21. Đoàn


22. Đào


23. Thái


24. Mai


25. Văn


26. Cao


27. Vương


28. Phùng


29. Quách


30. Tạ


31. Diệp


32. Tôn


33. La


34. Thạch


35. Thi


36. Thanh


37. Đàm


38. Vong


39. Triệu


40. Bưu


41. Phú


42. Vĩnh


43. Quang


44. Tiều


45. Hòa


46. Trang


47. Giang


48. Lục


49. Bành


50. Nghiêm

Wikipedia has a nice post on Vietnamese surnames, but they're not all in order. I added the tones so they might be off. Let me know if I muffed your last name! I'll fix it.
This list is used by the US Department of Justice and is based on several sources:
Abrahamse A. F., Morrison, P. A. & Bolton, N. M. (1994). Population Research and Policy Review: 13 383-398.
Barringer, H. R., Gardner, R. W. & Levin, M.J. (1993). Asians and Pacific Islanders in the United States. The Population of the United States in the 1980s.
Buechley, R. W. (1976). Generally useful ethnic search system: GUESS. University of New Mexico, Cancer Research and Treatment Cetner (mimeo).
Choi, B. C. K., Hanley, A. J., Holowaty, E. J. & Dale, D. (1993). American Journal of Epidemiology 138: 723-734
Kuo, J. & Porter, K. (1998). Health status of Asian Americans: United States, 1992-1994.