| Centuries: | 5th century BC - 4th century BC - 3rd century BC |
| Decades: | 340s BC 330s BC 320s BC - 310s BC - 300s BC 290s BC 280s BC |
| Years: | 318 BC 317 BC 316 BC - 315 BC - 314 BC 313 BC 312 BC |
| 315 BC by topic | |
| Politics | |
| State leaders - Sovereign states | |
| Birth and death categories | |
| Births - Deaths | |
| Establishments and disestablishments categories | |
| Establishments - Disestablishments | |
| Gregorian calendar | 315 BC |
| Ab urbe condita | 439 |
| Armenian calendar | N/A |
| Bahá'í calendar | -2158 – -2157 |
| Berber calendar | 636 |
| Buddhist calendar | 230 |
| Burmese calendar | -952 |
| Chinese calendar | 2322/2382 ([[Sexagenary cycle|]]年) — to —
2323/2383([[Sexagenary cycle|]]年) |
| Coptic calendar | -598 – -597 |
| Ethiopian calendar | -322 – -321 |
| Hebrew calendar | 3446 – 3447 |
| Hindu calendars | |
| - Vikram Samvat | -259 – -258 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2787 – 2788 |
| Holocene calendar | 9686 |
| Iranian calendar | 936 BP – 935 BP |
| Islamic calendar | 965 BH – 964 BH |
| Japanese calendar | |
| Korean calendar | 2019 |
| Thai solar calendar | 229 |