NOCs at the 221 CE Ancient Olympics
NOCs in green participated. The darker, the more participants. World map is not historically correct.
| Country | Men | Women | Total | |
|---|---|---|---|---|
 BTN |
Bithynia (Nikaia) | 1 | 0 | 1 |
 SPA |
Sparta | 1 | 0 | 1 |
 EGP |
Unknown city in Egypt | 1 | 0 | 1 |
| Total | 3 | 0 | 3 |