Guinea is divided into four natural regions with distinct human, geographic, and climatic characteristics:
- Maritime Guinea (La Guinée Maritime) covers 34% of the country
- Middle Guinea (La Moyenne-Guinée) covers 20% of the country
- Upper Guinea (La Haute-Guinée) covers 38% of the country
- Forested Guinea (Guinée Forestière) covers 23% of the country, and is both forested and mountainous