Lista Ong-urilor din Constanta
| Denumire | Județ | Localitate ▲ ▼ |
| Asociatia Haiducilor | Constanta | Constanta |
| Asociatia Handbal Club Dobrogea Sud Constanta | Constanta | Constanta |
| Asociatia Handicapatilor Sportivi Poseidon | Constanta | Constanta |
| Asociatia Handmade Romania | Constanta | Constanta |
| Asociatia Happy Volleyball Constanta 2018 | Constanta | Constanta |
| Asociatia Harlequin Diversitate | Constanta | Constanta |
| Asociatia Haruki Do Club Sportiv | Constanta | Constanta |
| Asociatia Harul Nesfarsit | Constanta | Topraisar |
| Asociatia Hathi | Constanta | Constanta |
| Asociatia Hbm | Constanta | Topraisar |
| Asociatia Help 4 All | Constanta | Constanta |
| Asociatia Helping Birds | Constanta | Navodari |
| Asociatia Heracleea | Constanta | Constanta |
| Asociatia Hic Et Ubique | Constanta | Constanta |
| Asociatia Hidroedil Sa | Constanta | Constanta |
| Asociatia Hippico | Constanta | Constanta |
| Asociatia Hobby | Constanta | Constanta |
| Asociatia Horseland Navodari | Constanta | Constanta |
| Asociatia Horticultorul Ostrov | Constanta | Ostrov |
| Asociatia House Of Education And Innovation (hei) | Constanta | Constanta |
