Waterways
Gulfs
| Number of | |||
| Waterway | Ports | Waterway Systems | |
| Asia | |||
| Gulf of Oman | 8 | 1 | |
| Persian Gulf | 33 | 1 | |
| Europe | |||
| Gulf of Bothnia | 27 | 1 | |
| Gulf of Finland | 27 | 1 | |
| Gulf of Lion | 16 | 0 | |
| Gulf of Riga | 15 | 1 | |
| North America | |||
| Gulf of California | 11 | 0 | |
| Gulf of Mexico | 68 | 0 | |
| Select | |||
| Gulf of Aden | 5 | 1 | |
