This is a list of Gabonese provinces by Human Development Index as of 2021.[1]
Note: Libreville (capital of Gabon and Estuaire Province) and Port Gentil (capital of Ogooué-Maritime Province and second-largest city) are grouped and have their own HDI.
| Rank | Province | HDI (2021) |
|---|---|---|
| High human development | ||
| 1 | Libreville–Port Gentil | 0.744 |
| – |  Gabon (average) |
0.706 |
| Medium human development | ||
| 2 | Estuaire | 0.692 |
| 3 | Haut-Ogooué | 0.686 |
| 4 | Moyen-Ogooué | 0.660 |
| 5 | Ogooué-Maritime | 0.653 |
| 6 | Woleu-Ntem | 0.647 |
| 7 | Nyanga | 0.640 |
| 8 | Ogooué-Lolo | 0.634 |
| 9 | Ngounié | 0.622 |
| 10 | Ogooué-Ivindo | 0.598 |