Lista Ong-urilor din Bacau
| Denumire | Județ | Localitate ▲ ▼ |
| Asociatia Harmonic Club | Bacau | Targu Ocna |
| Asociatia Heart Of The World Association | Bacau | Bacau |
| Asociatia Hedonys Afj | Bacau | Bacau |
| Asociatia Hefyo Afj | Bacau | Bacau |
| Asociatia Help 4 Paws Together Ajutam 4 Labute Impreuna | Bacau | Onesti |
| Asociatia Help Animals From Onesti | Bacau | Onesti |
| Asociatia Help Life Afj | Bacau | Bacau |
| Asociatia Help Romania Afj | Bacau | Bacau |
| Asociatia Help To Work Afj | Bacau | Faraoani |
| Asociatia Henri Coanda Tinerii Si Europa Afj | Bacau | Bacau |
| Asociatia Hidalgo | Bacau | Bacau |
| Asociatia Hilfe Fur Die Armen Afj | Bacau | Bacau |
| Asociatia Holistic Ses Afj | Bacau | Bacau |
| Asociatia Horeca Bacau | Bacau | Bacau |
| Asociatia Horticom Pas Afj | Bacau | Orbeni |
| Asociatia I Wheel Bike Club Afj | Bacau | Moinesti |
| Asociatia Iacob - Alaturi De Oameni | Bacau | Holt |
| Asociatia Iacob Micul Lord | Bacau | Bacau |
| Asociatia Impreuna Construim Destine | Bacau | Spria |
| Asociatia Impreuna Construim Viitorul Afj | Bacau | Bacau |
