I
- Île Royale
- Île Saint-Joseph
- Iles du Connétable
- Îles du Salut
- Inini
- Inini River
- International Organization for Standardization (ISO)
- ISO 3166-1 alpha-2 country code for French Guiana: GF
- ISO 3166-1 alpha-3 country code for French Guiana: GUF
- Iracoubo
- Islands of French Guiana
Read more about this topic: Index Of French Guiana-related Articles