| Inscription | Country | Years | #Issued |
| Z.Afr. Republiek | Transvaal | 1869-1901 | 220 |
| Zambezia | Zambezia | 1894-1917 | 110 |
| Zambia | Zambia | 1964- | 400 |
| Zanzibar | Zanzibar | 1895-1965 | 330 |
| Zanzibar - Tanzania | Zanzibar | 1965-67 | 40 |
| Zimbabwe | Zimbabwe | 1980- | 150 |
| Zone Francais: Briefpost | Germany (French occ.) | 1945-46 | 13 |
| Zululand | Zululand | 1888-96 | 25 |
| Zurich | Switz: Zurich | 1843-46 | 4 |
If there are any missing inscription, tell me : marcosampaio@grupo.bfe.pt
