Year 1365 (MCCCLXV) was a common year starting on Wednesday of the Julian calendar.

• March 3 – Battle of Gataskogen: Albert of Mecklenburg defeats and captures Magnus Eriksson, obtaining the throne of Sweden.
• March 12 – The University of Vienna is founded.
• June 2 – The Hungarian occupation of Vidin begins, with the capture of the city by Louis I of Hungary's forces, and the imprisonment of Ivan Sratsimir of Bulgaria.
• October – Alexandrian Crusade: The city of Alexandria in Egypt is sacked by an allied force of Peter I of Cyprus and the knights of the Order of St. John of Jerusalem.
• November 30 – The Nagarakretagama, a Javanese eulogy chronicling the journey of the Majapahit king, Hayam Wuruk, through his kingdom, is completed by Mpu Prapanca.

• Adrianopole (modern-day Edirne) becomes the capital city of the Ottoman Sultanate.
• In modern-day southern India, Bahmani Sultan Mohammed Shah I invades the Vijayanagara Empire.
• The Sukhothai Kingdom in northern Thailand becomes a tributary state of the Ayutthaya Kingdom.^{[citation needed]}
• Muhammed V begins building the Maristan of Granada (a hospital) in Granada (in modern-day Spain).
• The Chagatai Khanate defeats Timur in the Battle of Tashkent.

• January 27 – Edward of Angoulême, French-born royal prince of England (d. 1370)
• July 25 – U of Goryeo, Korean king (d. 1389)
• date unknown – Abd al-Karīm al-Jīlī, Baghdadi Sufi author (d. 1424)
• approximate date – Violant of Bar, queen regent of Aragon (d. 1431)^[1]

• March 8 – Princess Noguk of the Yuan dynasty and queen consort of Goryeo
• May 17 – Louis VI the Roman, Duke of Bavaria and Elector of Brandenburg (b. 1328)
• July 27 – Rudolf IV, Duke of Austria (b. 1339)
• December 8 – Nicholas II, Duke of Opava (b. 1288)
• date unknown – Zhu Derun, Chinese painter and poet (b. 1294)