Lista Ong-urilor din Bacau
| Denumire | Județ | Localitate ▲ ▼ |
| Asociatia Stele Romanesti Afj | Bacau | Bacau |
| Asociatia Step By Step Gradinita Nr.5 Onesti Afj | Bacau | Onesti |
| Asociatia Sticla Afj | Bacau | Onesti |
| Asociatia Stofe Buhusi Pas Afj | Bacau | Buhusi |
| Asociatia Stogul De Piatra | Bacau | Zemes |
| Asociatia Stomadent Afj | Bacau | Bacau |
| Asociatia Stop Drog Afj | Bacau | Bacau |
| Asociatia Stramba Afj | Bacau | Rosiori |
| Asociatia Strategic Group Afj | Bacau | Bacau |
| Asociatia Street Dogs Saving Mission Bacau Afj | Bacau | Bacau |
| Asociatia Strengarel Afj | Bacau | Bacau |
| Asociatia Studentilor Crestin Ortodocsi Romani | Bacau | Bacau |
| Asociatia Studentilor Crestini Ortodocsi Romani Afj | Bacau | Bacau |
| Asociatia Studium Dimitrie Cantemir Onesti Afj | Bacau | Onesti |
| Asociatia Sudometal Afj | Bacau | Bacau |
| Asociatia Suflet Nevinovat Afj | Bacau | Comanesti |
| Asociatia Suflet Senin Afj | Bacau | Comanesti |
| Asociatia Suflet Si Gratie | Bacau | Popeni |
| Asociatia Sufletesti | Bacau | Onesti |
