| Inscription | Country | Years | #Issued |
| Gabon | Gabon | 1904-07 | 40 |
| Gambia | Gambia | 1869- | 1100 |
| General Gouvernement | Poland (German occ.) | 1940-44 | 180 |
| Ghadames | Libya (French occ.) | 1949 | 10 |
| Ghana | Ghana | 1957- | 1000 |
| Gibraltar | Gibraltar | 1886- | 550 |
| Gilbert & Ellice Islands | Gilbert & Ellice Islands | 1911-75 | 260 |
| Gilbert Islands | Gilbert Islands | 1976-79 | 120 |
| Glenveagh | Bogus | ||
| Gnostis | Bogus | ||
| Gold Coast | Gold Coast | 1875-1954 | 170 |
| Golfo de Benin | Benin | 1893 | 13 |
| Gopshe | Bogus | ||
| Governatorato del Montenegro (ovpt) | Montenegro (Italian occ) | 1942 | 25 |
| Grand Comore | Grand Comoro | 1897-1912 | 30 |
| Grand Duche de Luxembourg | Luxembourg | 1859-1919 | 80 |
| Grand Liban | Lebanon | 1924-27 | 70 |
| Great Island | Bogus | ||
| Grenada | Grenada | 1861- | 1400 |
| Grenada Grenadines | Grenada Grenadines | 1974- | 800 |
| Grenadines of St. Vincent | St. Vincent Grenadines | 1978- | 300? |
| Gronland | Greenland | 1938- | 200 |
| Grossdeutsches Reich | Germany | 1944-45 | 60 |
| Guadeloupe | France: Guadeloupe(aut) | 1892-1947 | 270 |
| Guatemala | Guatemala | 1871- | 1300 |
| Guernsey | GB: Guernsey(isl/aut) | 1969- | 300 |
| Guinea Continental Espanola | Spanish Guinea | 1902-29 | 100 |
| Guinea Espanola | Spanish Guinea | 1949-59 | 100 |
| Guine | Portuguese Guinea | 1881-1973 | 450 |
| Guine Portuguese | Portuguese Guinea | 1948-67 | 25 |
| Guine-Bissau | Guinea-Bissau | 1975- | 150 |
| Guinee | French Guinea | ||
| Guinee Francaise | French Guinea | ||
| Guyana | Guyana | 1966- | 450 |
| Guyane | French Guiana | 1892-04 | |
| Guyane Francaise | French Guiana | 1912-47 |
If there are any missing inscription, tell me : marcosampaio@grupo.bfe.pt
