Found 4 full forms for NNBH
| Term | Full Form | Category |
|---|---|---|
| NNBH | New National Baptist Hymnal 
| Others |
| NNBH | Newport News Behavioral Health
| Others |
| NNBH | Non Native Bush Honeysuckles
| Others |
| NNBH | Noord Nederlandse boekhandel
| Others |