1166 (MCLXVI) was a common year starting on Saturday of the Julian calendar, the 1166th year of the Common Era (CE) and Anno Domini (AD) designations, the 166th year of the 2nd millennium, the 66th year of the 12th century, and the 7th year of the 1160s decade.
|Centuries:||11th century – 12th century – 13th century|
|Decades:||1130s 1140s 1150s – 1160s – 1170s 1180s 1190s|
|Years:||1163 1164 1165 – 1166 – 1167 1168 1169|
- Marko III follows Yoannis V as patriarch of Alexandria.
- Henry the Lion builds the first bronze statue north of the Alps.
- Giraldo Sempavor captures Evora.