|Centuries:||3rd century – 4th century – 5th century|
|Decades:||330s 340s 350s – 360s – 370s 380s 390s|
|Years:||358 359 360 – 361 – 362 363 364|
|361 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishment and disestablishment categories|
|Establishments – Disestablishments|
|Ab urbe condita||1114|
|Chinese calendar||庚申年 (Metal Monkey)
3057 or 2997
— to —
辛酉年 (Metal Rooster)
3058 or 2998
|- Vikram Samvat||417–418|
|- Shaka Samvat||283–284|
|- Kali Yuga||3462–3463|
|Iranian calendar||261 BP – 260 BP|
|Islamic calendar||269 BH – 268 BH|
|Minguo calendar||1551 before ROC
|Seleucid era||672/673 AG|
|Thai solar calendar||903–904|
|Wikimedia Commons has media related to 361.|
Year 361 (CCCLXI) 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 Taurus and Florentius (or, less frequently, year 1114 Ab urbe condita). The denomination 361 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.
- November 3 – Emperor Constantius II dies of a fever at Mopsuestia in Cilicia, age 44, on his deathbed he is baptised and declares his cousin Julian the Apostate rightful successor.
- December 11 – Julian becomes sole emperor of the Roman Empire, he rules from Constantinople and tries to restore paganism. Constantius II is buried in the Church of the Holy Apostles.
- Ministers and followers of Constantius II are put to trial at the Chalcedon tribunal.
- July 10 – Sixteen Kingdoms: Jin Aidi, age 20, succeeds Jin Mudi as emperor of the Eastern Jin Dynasty.
- Constantinople enforces a strict licensing system for physicians.
- Emperor Julian tries to organize a pagan church and substitute it for Christianity. Pope Liberius repudiates the Arian creed and declares that the Council of Arminium had no authority to issue decrees.
- Gregory Nazianzus, (Saint Gregory the Theologian), returns to Nazianzus and becomes a priest by his father. Who wants him to assist local Christians.
- December 24 – George of Cappadocia is murdered in Alexandria and Athanasius returns to his native city in triumph.
- Apodemius, Roman officer and secret agent
- November 3 – Constantius II, Roman Emperor (b. 317)
- Eusebius, Roman officer
- George of Cappadocia, archbishop of Alexandria
- Jin Mudi, emperor of the Eastern Jin Dynasty (b. 343)
- Li Shi, emperor of the Chinese Ba-Di state Cheng Han
- Song Hun, regent of the Chinese state Former Liang
- Wang Xizhi, Chinese calligrapher (b. 303)