Culture or time period
- Indian Muslim2
- Indian cultures1,518
- Indo-Aryan peoples128
- Indo-European157
- Indonesian537
- Indonesian cultures1,182
- Indus River Valley Civilization5
- Ingalik24
- Initial Period (1800–900 BC), Casma/Sechin culture22
- Inland Eskimo5
- Inland Tlingit12
- Innu8
- Interior Salish57
- Inuit185
- Inupiaq181
- Inupiaq Eskimo5
- Ionian6
- Ira needs to determine139
- Iranian157
- Iranian Dynasties17