Year 310 BC was a year of the pre-Julian Roman calendar.
|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:||313 BC 312 BC 311 BC – 310 BC – 309 BC 308 BC 307 BC|
|310 BC by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishments and disestablishments categories|
|Establishments – Disestablishments|
|Gregorian calendar||310 BC|
|Ab urbe condita||444|
|Ancient Egypt era||XXXIII dynasty, 14|
|- Pharaoh||Ptolemy I Soter, 14|
|Ancient Greek era||117th Olympiad, year 3|
|Balinese saka calendar||N/A|
|Chinese calendar||庚戌年 (Metal Dog)|
2387 or 2327
— to —
辛亥年 (Metal Pig)
2388 or 2328
|Coptic calendar||−593 – −592|
|Ethiopian calendar||−317 – −316|
|- Vikram Samvat||−253 – −252|
|- Shaka Samvat||N/A|
|- Kali Yuga||2791–2792|
|Iranian calendar||931 BP – 930 BP|
|Islamic calendar||960 BH – 959 BH|
|Minguo calendar||2221 before ROC|
|Seleucid era||2/3 AG|
|Thai solar calendar||233–234|
−183 or −564 or −1336
— to —
−182 or −563 or −1335
|Wikimedia Commons has media related to 310 BC.|
- Antigonus tells Nicanor, one of his generals, to attack Babylonia from the east and his son Demetrius Poliorcetes to attack it from the west. Nicanor gets a large force but it is surprised and defeated by Seleucus at the river Tigris. Similarly, Demetrius Poliorcetes does not succeed.
- Ptolemy attacks Cilicia.
- The cities of Antigonia Troas (later known as Alexandria Troas) and Antigoneia (later known as Nicaea) are formed by Antigonus I Monophthalmus.
- The tyrant of Syracuse Agathocles escapes from the siege of the city by the Carthaginians. He takes the war back to their land.
- Rome has more trouble from the Etruscans. They are persuaded by the Samnites to stop their alliance with the Romans. In the Battle of Lake Vadimo, the Romans under Fabius Maximus Rullianus defeat the Etruscans.
- for more information, see Category:310 BC births.