1. I., Stephanie (5)
2. Iannetta, Alyxx (18)
3. IATSE (2)
4. Iceman
5. Ichigo (4)
6. Ichiko, Suzushi (9)
7. Ifreet
8. Ikea (19)
9. Ikeda, Takeshi
10. Ikegawa, Lance (2)
11. Illingworth, Marcia (3)
12. Illingworth, Tim (9)
13. Imaoka, Masahara (2)
14. Imaoka, Masaharu (8)
15. Imaoka, Mutsumi (4)
16. IMAW (12)
17. Infante, Caitlind
18. Infante, Elizabeth (10)
19. Infante, Jon (5)
20. Ingram, Delaine (2)
21. Ingram, Mark
22. Inkpen, Carol
23. Innes, Rachael (7)
24. Innis, John (6)
25. I-no (102)
26. Ino, Yamanaka (2)
27. Inoue, Hiroaki (32)
28. Inoue, Tamie (17)
29. Inyx
30. Iocane (9)
31. Ireland, Jennifer
32. Irete, Heather (4)
33. Irvin, John (6)
34. Irvin, Marilyn (8)
35. Irvin, Marylin
36. Irvin, Tony (7)
37. Irving, Alice (2)
38. Irving, Terri
39. Irwin, Mark (3)
40. Irwin, Sarah
41. Isaacs, Katy (2)
42. Ishida, Uryu (3)
43. Ishihara, Saki (2)
44. Ishisaki, Loretta (2)
45. Ishizaka, Dave
46. Ishizaka, David
47. Ishizaka, Greg (3)
48. Ishizaka, Willie
49. Ishizaka, Willy (3)
50. Isis
51. Isle, Sue (2)
52. Isono, Yuka
53. Isshi
54. Itachi
55. Ito, Shoko (2)
56. Ito, Touko (2)
57. Ittner, Pam
58. Ivy, Emerald (2)
59. Ivy, Poison
60. Ivysaur
61. Izbigibitz, Three Pants

44 first names

I-no Iain (4) Ian (14) IATSE Iceman Ichigo Ifreet Igwad Ikari Ike (2) Ikea Ikuko Ilana Ilena Ilene IMAW Ina India Ing-Long Inger Ingrid (2) Inigo Ino Integra Inu Inyx Iocane Ira Irene (2) Irma Isabel Isabella (2) Ishmael Isidro Isis Isobel Israel Isshi Itachi Ivan Ivo Ivy (2) Ivysaur Izzy