| Canal Zone |
|
| Cape Juby |
|
| Cape of Good Hope |
|
| Cape of Good Hope- Revenue Stamps |
|
| Caribbean Netherlands |
|
| Caroline Islands |
|
| Carpathian Ukraine |
|
| Castellorizo |
|
| Cayman Islands |
|
| Cayman Islands- Revenue Stamps |
|
| Central African Republic |
|
| Central African Republic- Illegal Stamps |
|
| Central Lithuania |
|
| Ceylon |
|
| Chad |
|
| Chad- Illegal Stamps |
|
| Chamba |
|
| Charkhari |
|
| Chile |
|
| Chile- Revenue Stamps |
|