| Acronym | Sense | Language | Topics |
|---|---|---|---|
| ANBO | African Network of Basin Organisations | In English | → Hydrology → 626 → Engineering, technology → Africa |
| INBO | International Network of Basin Organizations | In English | → Hydrology → 626 → Engineering, technology |
| INTBO | International Network of Transboundary Basin Organizations | In English | → Hydrology → 626 → Engineering, technology |
| IRBD | International River Basin District | In English | → 626 → 627 |