Back 311 v.C. Afrikaans 311 ق م Arabic 311 ق م ARZ 311 e.C. AST E.ə. 311 Azerbaijani 311 v. Kr. BAR 311 да н.э. Byelorussian 311 да н. э. BE-X-OLD 311 г. пр.н.е. Bulgarian 311. p. n. e. BS
| Millennium: | 1st millennium BC |
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| Years: |
| 311 BC by topic |
| Politics |
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| Categories |
| Gregorian calendar | 311 BC CCCXI BC |
| Ab urbe condita | 443 |
| Ancient Egypt era | XXXIII dynasty, 13 |
| - Pharaoh | Ptolemy I Soter, 13 |
| Ancient Greek era | 117th Olympiad, year 2 |
| Assyrian calendar | 4440 |
| Balinese saka calendar | N/A |
| Bengali calendar | −903 |
| Berber calendar | 640 |
| Buddhist calendar | 234 |
| Burmese calendar | −948 |
| Byzantine calendar | 5198–5199 |
| Chinese calendar | 己酉年 (Earth Rooster) 2387 or 2180 — to — 庚戌年 (Metal Dog) 2388 or 2181 |
| Coptic calendar | −594 – −593 |
| Discordian calendar | 856 |
| Ethiopian calendar | −318 – −317 |
| Hebrew calendar | 3450–3451 |
| Hindu calendars | |
| - Vikram Samvat | −254 – −253 |
| - Shaka Samvat | N/A |
| - Kali Yuga | 2790–2791 |
| Holocene calendar | 9690 |
| Iranian calendar | 932 BP – 931 BP |
| Islamic calendar | 961 BH – 960 BH |
| Javanese calendar | N/A |
| Julian calendar | N/A |
| Korean calendar | 2023 |
| Minguo calendar | 2222 before ROC 民前2222年 |
| Nanakshahi calendar | −1778 |
| Seleucid era | 1/2 AG |
| Thai solar calendar | 232–233 |
| Tibetan calendar | 阴土鸡年 (female Earth-Rooster) −184 or −565 or −1337 — to — 阳金狗年 (male Iron-Dog) −183 or −564 or −1336 |
Year 311 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Brutus and Barbula (or, less frequently, year 443 Ab urbe condita). The denomination 311 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.