369

Year 369 (CCCLXIX) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Galates and Victor (or, less frequently, year 1122 Ab urbe condita). The denomination 369 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.

• Spring – Emperor Valens crosses the Danube,^[1] and attacks the Gothic tribes (Greuthungi and Tervingi). Valens and Athanaric, the Gothic king, eventually sign a treaty.^[1]
• Fritigern becomes king of the Visigoths; amidst hostilities with his rival Athanaric, he asks Valens and the Thracian field army to intervene. They end the civil war, and Fritigern converts to Christianity.
• Theodosius the Elder brings Britain fully back to the Empire after the Great Conspiracy of 367.

• King Shapur II occupies the pro-Roman kingdom of Armenia. He besieges Artogerassa in modern Georgia, where Papas (Pap), son of King Arsaces II (Arshak II), defends the fortress and the royal treasure against Persian forces.

• Eastern Jin general Huan Wen's third northern expedition is defeated by Former Yan general Murong Chui.
• Goguryeo invades Baekje (approximate date).

• Wulfila creates a Gothic alphabet composed of letters based on Greek and Roman letters, as well as some Germanic runes. He converts the Goths to Arian Christianity.

• Huan Xuan, Chinese warlord and emperor of the Jin Dynasty (d. 404)

• May 3 – Juvenal of Narni, Roman Catholic bishop, confessor and saint
• Caesarius of Nazianzus, Byzantine physician and politician (b. 331)
• Pharantzem, Armenian queen and regent (approximate date)
• Valentinus, Roman criminal and rebel leader