|Millennium:||1st millennium BC|
|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:||316 BC 315 BC 314 BC – 313 BC – 312 BC 311 BC 310 BC|
|313 BC by topic|
|Gregorian calendar||313 BC|
|Ab urbe condita||441|
|Bahá'í calendar||−2156 – −2155|
|English Regnal year||N/A|
|Chinese calendar||丁未年 (Fire Goat)
2384 or 2324
— to —
戊申年 (Earth Monkey)
2385 or 2325
|Coptic calendar||−596 – −595|
|Ethiopian calendar||−320 – −319|
|- Vikram Samvat||−256 – −255|
|- Shaka Samvat||N/A|
|- Kali Yuga||2789–2790|
|Igbo calendar||−1312 – −1311|
|Iranian calendar||934 BP – 933 BP|
|Islamic calendar||963 BH – 962 BH|
|Minguo calendar||2224 before ROC
|Thai solar calendar||231|
|Wikimedia Commons has media related to 313 BC.|
Year 313 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Cursor and Brutus (or, less frequently, year 441 Ab urbe condita). The denomination 313 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.
- Ptolemy, whose Egyptian kingdom includes Cyprus, puts down a revolt there. A revolt in Cyrene is also crushed.
- Becoming tired of the Macedonian rule, the people of Epirus recall their former king Aeacides. Cassander immediately sends an army against him under his brother, Philip, who is diverted from invading Aetolia.
- Philip defeats Aeacides in a battle. Aeacides, with the remnant of his forces, joins the Aetolians. A second battle takes place, in which Philip is again victorious, and Aeacides is killed. The remaining Aetolian army takes refuge in the surrounding mountains.