| 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) |