|Centuries:||10th century · 11th century · 12th century|
|Decades:||1050s · 1060s · 1070s · 1080s · 1090s · 1100s · 1110s|
|Years:||1082 · 1083 · 1084 · 1085 · 1086 · 1087 · 1088|
|1085 by topic|
|Lists of leaders|
|Birth and death categories|
|Births – Deaths|
|Establishments and disestablishments categories|
|Establishments – Disestablishments|
|Ab urbe condita||1838|
|English Regnal year||19 Will. 1 – 20 Will. 1|
|Chinese calendar||甲子年 (Wood Rat)|
3781 or 3721
— to —
乙丑年 (Wood Ox)
3782 or 3722
|- Vikram Samvat||1141–1142|
|- Shaka Samvat||1006–1007|
|- Kali Yuga||4185–4186|
|Japanese calendar||Ōtoku 2|
|Minguo calendar||827 before ROC|
|Seleucid era||1396/1397 AG|
|Thai solar calendar||1627–1628|
|Wikimedia Commons has media related to 1085.|
- April 2 – Emperor Zhezong becomes emperor of Song Dynasty. Empress Dowager Gao cancels all the reform packages and dismisses pro-reform Wang Anshi.
- May 25 – Alfonso VI of Castile enters the Islamic city of Toledo, Spain, and invites French knights to settle the central plateau of Spain.
- The Domesday survey is commissioned by William I of England, apparently prompted by the abortive invasion of Canute IV of Denmark, to ensure proper taxation and levies.
- Henry IV extends the "Peace of God" over his entire empire.
- Katedralskolan in Lund, the oldest school in Scandinavia, is founded.
- Vratislav, Duke of Bohemia, is crowned King.
- By this year, the annual output of copper currency for the Chinese Song Dynasty reaches 6 billion coins a year, prompting the Chinese government to adopt the world's first paper-printed money later in the 1120s.
- Alberich of Reims (d. 1141)
- Raoul I, Count of Vermandois (d. 1152)
- Robert fitz Martin, Norman knight and first Lord of Cemais, Wales (d. 1159)
- Zhang Zeduan, Chinese painter (d. 1145)
- April 1 – Emperor Shenzong of China (b. 1048)
- May 25 – Pope Gregory VII
- July 15 – Robert Guiscard
- August 19 – Al-Juwayni , Muslim Scholar and Imam, Imam al Haramayn. (born 1028)
- Cheng Hao, Chinese Neo-Confucian philosopher (b. 1032)