1335 (MCCCXXXV) was a common year starting on Sunday of the Julian calendar, the 1335th year of the Common Era (CE) and Anno Domini (AD) designations, the 335th year of the 2nd millennium, the 35th year of the 14th century, and the 6th year of the 1330s decade. As of the start of 1335, the Gregorian calendar was 8 days ahead of the Julian calendar, which was the dominant calendar of the time.

• 30 November – Battle of Culblean in Scotland.
• Abu Said dies and the Ilkhanate disintegrates.
• Slavery abolished in Sweden.
• Congress of Visegrád involving the monarchs of Bohemia, Hungary, and Poland.
• Carinthia and Carniola come under Habsburg rule. After the death of Duke Henry, the duchies are bestowed by Louis the Bavarian on the Dukes of Austria. From that time onwards, what is today Slovenia was ruled jointly with Austria until 1918.
• Pope Benedict XII begins to reform the Cistercians
• The excommunication of Frederick III of Sicily and the interdict placed on Sicily end
• Beginning of the construction of the papal palace in Avignon
• Otto the Merry, Duke of Austria, becomes Duke of Carinthia on May 2
• Aabenraa is chartered as a city.
• Foundation of School of Arts in Zaragoza, Spain which later came to be known as the University of Zaragoza in 16th Century.

• Matthew of Kraków, Bohemian writer (died 1410)

• April 2 – Duke Henry of Carinthia
• Prince Morinaga, Japanese shogun (born 1308)
• Abu Sa'id, Persian ruler (born 1316)