Lista Ong-urilor din Harghita
| Denumire | Județ | Localitate ▲ ▼ |
| Asociatia Flori Toplitene | Harghita | Toplita |
| Asociatia Flow | Harghita | Ciucsangeorgiu |
| Asociatia Flow Ride Egyesulet | Harghita | Miercurea Ciuc |
| Asociatia Focus For Partnership | Harghita | Balan |
| Asociatia Folk Csur Egyesulet | Harghita | Sancraieni |
| Asociatia Folk Tars Egyesulet | Harghita | Cristuru Secuiesc |
| Asociatia Fonix Daganatos Betegekert Egyesulet (fdbe) | Harghita | Gheorgheni |
| Asociatia Fono | Harghita | Ocna De Jos |
| Asociatia For Animals | Harghita | Miercurea Ciuc |
| Asociatia For Red Cross Gheorgheni | Harghita | Gheorgheni |
| Asociatia For Study | Harghita | Miercurea Ciuc |
| Asociatia For Talent Pentru Talent | Harghita | Miercurea Ciuc |
| Asociatia Forestiera Koalja | Harghita | Siclod |
| Asociatia Forestierul | Harghita | Miercurea Ciuc |
| Asociatia Forfun Remetea | Harghita | Remetea |
| Asociatia Forfun Remetea | Harghita | Remetea |
| Asociatia Formator | Harghita | Odorheiu Secuiesc |
| Asociatia Forr.alt Egyesulet | Harghita | Gheorgheni |
| Asociatia Forsilvan | Harghita | Odorheiu Secuiesc |
