|Millennium:||1st millennium BC|
|319 BC by topic|
|Gregorian calendar||319 BC
|Ab urbe condita||435|
|Ancient Egypt era||XXXIII dynasty, 5|
|- Pharaoh||Ptolemy I Soter, 5|
|Ancient Greek era||115th Olympiad, year 2|
|Balinese saka calendar||N/A|
|Chinese calendar||辛丑年 (Metal Ox)
2378 or 2318
— to —
壬寅年 (Water Tiger)
2379 or 2319
|Coptic calendar||−602 – −601|
|Ethiopian calendar||−326 – −325|
|- Vikram Samvat||−262 – −261|
|- Shaka Samvat||N/A|
|- Kali Yuga||2782–2783|
|Iranian calendar||940 BP – 939 BP|
|Islamic calendar||969 BH – 968 BH|
|Minguo calendar||2230 before ROC
|Thai solar calendar||224–225|
−192 or −573 or −1345
— to —
−191 or −572 or −1344
|Wikimedia Commons has media related to 319 BC.|
Year 319 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 Cerretanus (or, less frequently, year 435 Ab urbe condita). The denomination 319 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.
- The Athenian orator and diplomat, Demades, is sent to the Macedonian court, but either the Macedonian regent Antipater or his son Cassander, learning that Demades has intrigued with the former regent Perdiccas, puts him to death.
- Antipater becomes ill and dies shortly after, leaving the regency of the Macedonian Empire to the aged Polyperchon, passing over his son Cassander, a measure which gives rise to much confusion and ill-feeling.
- Polyperchon's authority is challenged by Antipater's son Cassander, who refuses to acknowledge the new regent. With the aid of Antigonus, ruler of Phrygia, and with the support of Ptolemy and Lysimachus, Cassander seizes Macedonia and most of Greece.
- Eumenes allies himself with the regent Polyperchon. He manages to escape from the siege of Nora, and his forces soon threaten Syria and Phoenicia. Polyperchon recognises Eumenes as the royal general in Asia Minor.
- Alexander the Great's widow, Roxana, joins Alexander's mother, Olympias, in Epirus.
- Antigonus II Gonatas, Macedonian king (approximate date) (d. 239 BC)
- Pyrrhus of Epirus, King of the Molossians, Epirus and Macedonia (d. 272 BC)