| Centuries: | 3rd century · 4th century · 5th century |
| Decades: | 300s 310s 320s 330s 340s 350s 360s |
| Years: | 336 337 338 339 340 341 342 |
| 339 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 339 CCCXXXIX |
| Ab urbe condita | 1092 |
| Armenian calendar | N/A |
| Bahá'í calendar | -1505 – -1504 |
| Bengali calendar | -254 |
| Berber calendar | 1289 |
| Buddhist calendar | 883 |
| Burmese calendar | -299 |
| Byzantine calendar | 5847 – 5848 |
| Chinese calendar | 戊戌年十二月初五日 (2975/3035-12-5) — to —
己亥年十一月十五日(2976/3036-11-15) |
| Coptic calendar | 55 – 56 |
| Ethiopian calendar | 331 – 332 |
| Hebrew calendar | 4099 – 4100 |
| Hindu calendars | |
| - Bikram Samwat | 395 – 396 |
| - Shaka Samvat | 261 – 262 |
| - Kali Yuga | 3440 – 3441 |
| Holocene calendar | 10339 |
| Iranian calendar | 283 BP – 282 BP |
| Islamic calendar | 292 BH – 291 BH |
| Japanese calendar | |
| Korean calendar | 2672 |
| Thai solar calendar | 882 |