| Record Number | Keyword(s) | Country | Catalog Listed? | Continent | |
| 1215 | J (overprint on stamps of Peru) | Peru- Yca (1884). | Real | Americas |  |
| 1216 | J.R.G. AEREO VALE 1946 (overprint) | Venezuela under the Junta Revolucionaria de Gobierno. | Real | Americas |  |
| 1217 | JA ЦPECHN KPCT (and cross) | Jugoslavia, postal tax stamps. | Real | Europe | |
| 1218 | JAFFA (overprint on stamps of Russia) | Russia- Offices in Turkey (1909-10). | Real | Asia |  |
| 1219 | JAIPUR | India- Jaipur (1904-49). | Real | Asia |  |
| 1220 | JAMES COOK LAND | Antarctic fantasy. | Not Scott Listed | Americas | |
| 1221 | JAMHURI ZANZIBAR TANZANIA | Zanzibar (1964-8). | Real | Africa |  |
| 1222 | JANINA (overprint on stamps of Italy) | Italy- Offices in Turkey- Janina (1902-11). | Real | Europe |  |
| 1223 | JANTAR | Donald Evans issue, Portuguese. | Not Scott Listed | Europe | |
| 1224 | JAPANESE 日本国 | Japan (1876-96). | Real | Asia |  |
| 1225 | JASON ISLAND | Falkland Islands nature preserve. | Not Scott Listed | Americas |  |
| 1226 | JAVA (overprint) | Netherlands Indies for Java and Madura, to check the frequency of mail (1908). | Real | Australia |  |
| 1227 | JEEND STATE (overprint) | India- Jhind (1885). | Real | Asia |  |
| 1228 | JERKONIA | Canada fantasy issue. | Not Scott Listed | Americas | |
| 1229 | JERMEND | Donald Evans issue. | Not Scott Listed | none | |
| 1230 | JERUSALEM (overprint on stamps of Russia) | Russia- Offices in Turkey (1909-10). | Real | Asia |  |
| 1231 | JIND (overprint) | India- Jhind (1913-43). | Real | Asia | |
| 1232 | JIND STATE (overprint) | India- Jhind (1885-1913). | Real | Asia |  |
| 1233 | JOGUE | India protective (to prevent employee theft) overprint produced in 1892. | Not Scott Listed | Asia | |
| 1234 | JOHOR (overprint on stamps of Straits Settlements) | Malaya- Johore (1884-91). | Real | Asia |  |
| 1235 | JOHORE | Malaya- Johore. | Real | Asia |  |
| 1236 | JORNAES | Portuguese language countries for printed matter [Journals]. | Real | Europe |  |
| 1237 | JOURNAUX | France, for newspapers and printed matter (1868) [Journals]. | Real | Europe |  |
| 1238 | JOURNAUX DAGBLADEN (overprint) | Belgium, newspaper stamps. | Real | Europe |  |
| 1239 | JUAN FERNANDEZ (overprint) | Chile (1910). | Real | Americas |  |
| 1240 | JUBILE DE L'UNION POSTALE UNIVERSELLE | Switzerland (1900). | Real | Europe |  |
| 1241 | JUDEA, STATE OF | Palestine proposed state by Rabbi Meir Kahane in the 1980's. | Not Scott Listed | Asia | |
| 1242 | JUEGOS OLYMPICOS (overprint) | Costa Rica, semipostals. | Real | Americas | |
| 1243 | JЧΓOCЛABИJA | Yugoslavia. | Real | Europe |  |
| 3532 | Jaffa (Russian Post Office) | Jaffa (Russian Post Office) (stamp issuing country) 1909 - 1910 | Real | Asia |  |
| 3533 | Jaipur | Jaipur (stamp issuing country) 1904 - 1948 | Real | Asia |  |
| 3534 | Jamaica | Jamaica (stamp issuing country) 1860 - | Real | Americas |  |
| 3535 | Jammu and Kashmir | Jammu and Kashmir (stamp issuing country) 1866 - 1894 | Real | Asia |  |
| 3536 | Jannina (Italian Post Office) | Jannina (Italian Post Office) (stamp issuing country) 1909 - 1911 | Real | Europe |  |
| 3537 | Japan 日本 日本国 | Japan (stamp issuing country) 1871 - | Real | Asia |  |
| 3538 | Japan (British Commonwealth Occupation) | Japan (British Commonwealth Occupation) (stamp issuing country) 1946 - 1949 | Real | Asia |  |
| 3539 | Japan (British Post Offices) | Japan (British Post Offices) (stamp issuing country) 1859 - 1879 | Real | Asia |  |
| 3541 | Japan (French Post Offices) | Japan (French Post Offices) (stamp issuing country) 1865 - 1880 | Real | Asia | |
| 3542 | Japanese Naval Control Area 日本国 | Japanese Naval Control Area (stamp issuing country) 1942 - 1943 | Real | Asia |  |
| 3543 | Japanese post in occupied China 中华人民共和国 | Japanese post in occupied China (stamp issuing country) 1941 - 1942 | Real | Asia |  |
| 3544 | Japanese Taiwan (Formosa) 中华人民共和国 | Japanese Taiwan (Formosa) (stamp issuing country) 1945 - only | Real | Asia |  |
| 3545 | Jasdan | Jasdan (stamp issuing country) 1942 - only | Real | Asia |  |
| 3546 | Java (Japanese Occupation) 日本国 | Java (Japanese Occupation) (stamp issuing country) 1943 - 1945 | Real | Asia |  |
| 3547 | Jersey | Jersey (stamp issuing country) 1941 - | Real | Europe |  |
| 3548 | Jerusalem (Italian Post Office) | Jerusalem (Italian Post Office) (stamp issuing country) 1909 - 1911 | Real | Asia |  |
| 3549 | Jerusalem (Russian Post Office) | Jerusalem (Russian Post Office) (stamp issuing country) 1909 - 1910 | Real | Asia |  |
| 3550 | Jhalawar | Jhalawar (stamp issuing country) 1887 - 1900 | Real | Asia |  |
| 3552 | Jind | Jind (stamp issuing country) 1874 - 1885 | Real | Asia |  |
| 3553 | Johore | Johore (stamp issuing country) 1876 - | Real | Asia |  |
| 3554 | Jordan | Jordan (stamp issuing country) 1920 - | Real | Asia |  |
| 3555 | Jubaland | Jubaland (stamp issuing country) 1925 - 1926 | Real | Africa |  |