HNB
| Acronym | Definition |
|---|---|
| HNB | Hatton National Bank (Sri Lanka) |
| HNB | Hrvatska Narodna Banka (National Bank of Croatia) |
| HNB | Home Node B (wireless communications) |
| HNB | Heat-not-Burn (tobacco products) |
| HNB | Hannibal National Bank |
| HNB | Hull Networks Box |
| HNB | Homes Not Bombs (Toronto, ON, Canada) |
| HNB | Helmholtz Network for Bioinformatics |
| HNB | Happy Noodle Boy (comic) |