| 416 BC by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishments and disestablishments categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 416 BC |
| Ab urbe condita | 338 |
| Armenian calendar | N/A |
| Assyrian calendar | 4335 |
| Bahá'í calendar | -2259–-2258 |
| Bengali calendar | -1008 |
| Berber calendar | 535 |
| English Regnal year | N/A |
| Buddhist calendar | 129 |
| Burmese calendar | -1053 |
| Byzantine calendar | 5093–5094 |
| Chinese calendar | 甲子年 (2221/2281) — to —
乙丑年(2222/2282) |
| Coptic calendar | -699–-698 |
| Ethiopian calendar | -423–-422 |
| Hebrew calendar | 3345–3346 |
| Hindu calendars | |
| - Vikram Samvat | -359–-358 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2686–2687 |
| Holocene calendar | 9585 |
| Iranian calendar | 1037 BP – 1036 BP |
| Islamic calendar | 1069 BH – 1068 BH |
| Japanese calendar | |
| Korean calendar | 1918 |
| Minguo calendar | 2327 before ROC 民前2327年 |
| Thai solar calendar | 128 |
Year 416 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Tribunate of Atratinus, Ambustus, Mugillanus and Rutilus (or, less frequently, year 338 Ab urbe condita). The denomination 416 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.