|Centuries:||11th century · 12th century · 13th century|
|Decades:||1090s · 1100s · 1110s · 1120s · 1130s · 1140s · 1150s|
|Years:||1121 · 1122 · 1123 · 1124 · 1125 · 1126 · 1127|
|1124 by topic|
|State leaders – Sovereign states|
|Birth and death categories|
|Births – Deaths|
|Establishments and disestablishments categories|
|Establishments – Disestablishments|
|Art and literature|
|1124 in poetry|
|Ab urbe condita||1877|
|English Regnal year||24 Hen. 1 – 25 Hen. 1|
|Chinese calendar||癸卯年 (Water Rabbit)|
3820 or 3760
— to —
甲辰年 (Wood Dragon)
3821 or 3761
|- Vikram Samvat||1180–1181|
|- Shaka Samvat||1045–1046|
|- Kali Yuga||4224–4225|
|Japanese calendar||Hōan 5 / Tenji 1|
|Minguo calendar||788 before ROC|
|Seleucid era||1435/1436 AG|
|Thai solar calendar||1666–1667|
|Wikimedia Commons has media related to 1124.|
- March 26 – Henry I of England's forces defeat Norman rebels at Bourgtheroulde.
- April 27 – David I succeeds Alexander I to become King of Scotland.
- December 21 – Pope Honorius II succeeds Pope Callixtus II as the 163rd pope.
- Gaufrid is consecrated as the first Abbot of Dunfermline Abbey.
- The Dun Beal Gallimhe is erected by King Tairrdelbach Ua Conchobair of Connacht.
- In Ireland, Saint Malachy, the great reformer of the Church, is made a bishop.
- Arnald becomes the first Bishop of Greenland.
- Ottokar III of Styria, Margrave (d. 1164)
- Possible date – Eleanor of Aquitaine, Duchess of Aquitaine, queen consort successively of France and England and patron of the arts (d. 1204)
- February 2 – Bořivoj II, Duke of Bohemia
- March 15 – Ernulf, Bishop of Rochester (b. c. 1040)
- April 23 – King Alexander I of Scotland
- December 13 – Pope Callixtus II
- Guibert of Nogent, French historian and theologian (b. 1053)