|Centuries:||2nd century – 3rd century – 4th century|
|Decades:||210s 220s 230s – 240s – 250s 260s 270s|
|Years:||246 247 248 – 249 – 250 251 252|
|249 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1002|
|Bahá'í calendar||−1595 – −1594|
|English Regnal year||N/A|
|Chinese calendar||戊辰年 (Earth Dragon)
2945 or 2885
— to —
己巳年 (Earth Snake)
2946 or 2886
|Coptic calendar||−35 – −34|
|- Vikram Samvat||305–306|
|- Shaka Samvat||171–172|
|- Kali Yuga||3350–3351|
|Igbo calendar||−751 – −750|
|Iranian calendar||373 BP – 372 BP|
|Islamic calendar||384 BH – 383 BH|
|Minguo calendar||1663 before ROC
|Thai solar calendar||792|
|Wikimedia Commons has media related to 249.|
Year 249 (CCXLIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gavius and Aquilinus (or, less frequently, year 1002 Ab urbe condita). The denomination 249 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.
- Trajan Decius puts down a revolt in Moesia and Pannonia. Loyal legionaries proclaim him emperor and he leads them into Italy. At a battle at Verona, he defeats and kills Philip the Arab.
- Decius begins persecuting the Christians and others refusing to participate in Emperor worship.
- Sima Yi takes complete control of Cao Wei by executing his political rival Cao Shuang and his clan, marking the start of Sima family rule, which eventually gave rise to the Jin Dynasty.
- In Alexandria, the populace pillages the homes of Christians.
- Wang Bi, Chinese philosopher (b. 226)
- Cao Shuang, general of Wei
- Cao Xi
- Quan Cong, general of Wu
- Ma Zhong, general of Shu Han
- Philip the Arab, Roman emperor (b. 204)