| Clubname: | Opountios |
| Founded: | 1932 |
| Ground: | Martino Municipal Stadium Martino, Phthiotis, Greece |
| Capacity: | 1,000 |
| Chairman: | Michail Mpatsos |
| Manager: | Makis Zacharopoulos |
| League: | Phthiotis FCA |
| Season: | 2020-21 |
| Position: | Gamma Ethniki (Group 4) 11th relegated |
| Website: | http://opountiosmartinou.blogspot.gr/ |
Opountios F.C. is a Greek football club, based in Martino, Phthiotis.