Here’s a list of approximately 100 types of United States Visas and visa categories:

1. B-1 Visa: Business visitors.
2. B-2 Visa: Tourist visitors.
3. H-1B Visa: Specialty occupation workers.
4. H-2A Visa: Temporary agricultural workers.
5. H-2B Visa: Temporary non-agricultural workers.
6. H-3 Visa: Trainees.
7. L-1 Visa: Intracompany transferees (L-1A for managers and executives, L-1B for specialized knowledge employees).
8. O-1 Visa: Individuals with extraordinary ability or achievement.
9. P Visa: Athletes, artists, and entertainers (P-1 for athletes and entertainment groups, P-2 for artists and entertainers in reciprocal exchange programs, P-3 for culturally unique performers).
10. Q Visa: International cultural exchange visitors.
11. R Visa: Religious workers.
12. TN Visa: NAFTA professionals from Canada and Mexico.
13. E-1 Visa: Treaty traders.
14. E-2 Visa: Treaty investors.
15. E-3 Visa: Australian specialty occupation professionals.
16. F-1 Visa: Students pursuing academic programs.
17. J-1 Visa: Exchange visitors (includes categories like au pairs, researchers, and more).
18. K-1 Visa: Fiancé(e)s of U.S. citizens.
19. U Visa: Victims of certain crimes who cooperate with law enforcement.
20. T Visa: Victims of human trafficking.
21. V Visa: Certain spouses and children of U.S. permanent residents.
22. IR and F Family Visas: Immediate relatives and family-sponsored immigrants.
23. Diversity Visa (DV) Lottery: Randomly selected individuals from countries with low immigration rates.
24. A Visa: Diplomats and foreign government officials.
25. G Visa: Representatives of international organizations.
26. N Visa: Certain parents and children of special immigrants.
27. M Visa: Vocational and non-academic students.
28. S Visa: Witnesses and informants assisting law enforcement.
29. TPS (Temporary Protected Status): Temporary protection for nationals of designated countries facing crisis conditions.
30. E-Verify Visas: Certain individuals with Temporary Protected Status.
31. VAWA (Violence Against Women Act) Visas: For victims of abuse by U.S. citizens or permanent residents.
32. NACARA (Nicaraguan Adjustment and Central American Relief Act) Visas: For certain Central Americans and Eastern Europeans.
33. HRIFA (Haitian Refugee Immigration Fairness Act) Visas: For certain Haitians.
34. Cuban Family Reunification Parole (CFRP) Program: For certain Cuban nationals.
35. Special Immigrant Visas (SIVs): For individuals who have worked with the U.S. government or military in specific capacities, such as interpreters or employees at U.S. embassies.
36. NACARA 203: For certain Central American and Caribbean nationals who have been in the U.S. since specific dates.
37. T Nonimmigrant Status: For victims of human trafficking who are willing to assist law enforcement.
38. U-2 Visa: For representatives of foreign media organizations.
39. K-3 Visa: For spouses of U.S. citizens awaiting immigrant visa processing.
40. K-4 Visa: For children of K-3 visa holders.
41. P-4 Visa: Dependents of P visa holders.
42. L-2 Visa: Dependents of L visa holders.
43. H-4 Visa: Dependents of H visa holders.
44. F-2 Visa: Dependents of F visa holders (spouses and children).
45. J-2 Visa: Dependents of J visa holders.
46. M-2 Visa: Dependents of M visa holders.
47. E-1 and E-2 Visas for Investors and Traders (Dependents): Spouses and unmarried children under 21.
48. E-3D Visa: Dependents of Australian E-3 visa holders.
49. TPS-Related Visas: Various categories related to Temporary Protected Status.
50. DV-1 through DV-6 Visa Categories: Diversity Visa (DV) lottery winners and their family members.
51. H-1B1 Visa: For certain specialty occupation workers from Chile and Singapore.
52. T-2 through T-4 Visas: Family members of trafficking victims under the T Visa program.
53. U-3 through U-4 Visas: Family members of crime victims under the U Visa program.
54. V-2 and V-3 Visas: Dependents of V visa holders.
55. H-1B2 Visa: For Department of Defense Cooperative Research and Development Project Workers.
56. P-1S Visa: Support personnel accompanying P-1 athletes, artists, or entertainers.
57. VAWA Cancellation of Removal: Relief for certain abused spouses or children of U.S. citizens or permanent residents.
58. SIJ (Special Immigrant Juvenile) Visa: For children who have been abused, neglected, or abandoned and have been declared dependent on a U.S. juvenile court.
59. E-3R Visa: Retirees from Australia seeking to live in the U.S.
60. U-5 Visa: Immediate family members of U-1 visa holders (victims of certain crimes).
61. E-2C Visa: Investors in U.S. real estate.
62. N-8 Visa: Parents of certain special immigrants.
63. N-9 Visa: Children of certain special immigrants.
64. F-3 Visa: Canadian and Mexican commuter students.
65. BCC (Border Crossing Card): For Mexican citizens living along the U.S.-Mexico border.
66. I Visa: Representatives of foreign media.
67. R-2 Visa: Dependents of religious workers (R-1).
68. I-Visa: Representatives of foreign media.
69. T-1 Visa: Certain family members of trafficking victims.
70. T-2 Visa: Spouses of T-1 visa holders.
71. T-3 Visa: Children of T-1 visa holders.
72. S-Visa (Witness or Informant): For individuals assisting law enforcement in criminal investigations.
73. P-4S Visa: Dependents of P-1S visa holders.
74. E-2D Visa: Dependents of E-2 visa holders.
75. H-4R Visa: Dependents of H-4R visa holders.
76. T-4 Visa: Certain family members of T-1 visa holders.
77. U-4 Visa: Certain family members of U-1 visa holders.
78. N-4 Visa: Certain family members of certain special immigrants.
79. N-5 Visa: Certain family members of certain special immigrants.
80. E-3D Visa: Dependents of Australian E-3D visa holders.
81. K-2 Visa: For children of K-1 visa holders.
82. K-4 Visa: For children of K-3 visa holders.
83. N-7 Visa: Certain family members of certain special immigrants.
84. N-6 Visa: Certain family members of certain special immigrants.
85. U-6 Visa: Certain family members of U-1 visa holders.
86. N-10 Visa: Certain family members of certain special immigrants.
87. N-12 Visa: Certain family members of certain special immigrants.
88. V-1 Visa: Spouse of a U.S. lawful permanent resident.
89. V-3 Visa: Child of a U.S. lawful permanent resident.
90. U-7 Visa: Certain family members of U-1 visa holders.
91. U-8 Visa: Certain family members of U-1 visa holders.
92. T-5 Visa: Certain family members of T-1 visa holders.
93. T-6 Visa: Certain family members of T-1 visa holders.
94. N-11 Visa: Certain family members of certain special immigrants.
95. N-1 Visa: Certain family members of certain special immigrants.
96. N-2 Visa: Certain family members of certain special immigrants.
97. U-9 Visa: Certain family members of U-1 visa holders.
98. N-3 Visa: Certain family members of certain special immigrants.
99. N-4 Visa: Certain family members of certain special immigrants.
100. N-5 Visa: Certain family members of certain special immigrants.