NOCs at the 312 BCE Ancient Olympics
NOCs in green participated. The darker, the more participants. World map is not historically correct.
| Country | Men | Women | Total | |
|---|---|---|---|---|
 ATH |
Athens | 1 | 0 | 1 |
 HER |
Heraia | 1 | 0 | 1 |
 MEG |
Megara | 1 | 0 | 1 |
 MTL |
Mytilene | 1 | 0 | 1 |
| Total | 4 | 0 | 4 |