List of state leaders in 1140

This is a list of heads of state, heads of governments, and other rulers in the year 1140.

Asia

China (Jin/Jurchen dynasty) - Emperor Xizong (1135–1149)
China (Southern Song dynasty) - Emperor Gaozong (1127–1162)
County of Edessa – Joscelin II (1131–1149)
Japan (Heian period)
- Monarch – Emperor Sutoku (1123–1142)
- Regent (Sesshō/Kampaku) - Fujiwara no Tadamichi (1121–1158)
Kara-Khitan Khanate (Western Liao) - Yelü Dashi (1124–1144)
Khmer Empire – Suryavarman II (1113–1150)
Korea (Goryeo Kingdom) – Injong (1122–1146)
Western Xia – Emperor Renzong (1139–1193)

Kingdom of Aragon – Petronilla (1137–1162)
Byzantine Empire – John II Komnenos (1118–1143)
Kingdom of Castile – Alfonso VII (1126–1158)
Kingdom of Denmark – Eric III (1137–1146)
Kingdom of England – Stephen (1135–1154)
Kingdom of France – Louis VII (1137–1180)
Holy Roman Empire – Interregnum (1133–1152)
- Kingdom of Germany – Conrad III (1138–1152)
- County of Holland – Dirk VI (1121–1157)
- Papal States - Pope Innocent II (1130–1143)
Kingdom of Hungary – Béla II (1131–1141)
Kingdom of León – Alfonso VII (1135–1157)
Kingdom of Navarre – Garcia Ramirez (1134–1150)
Kingdom of Norway – Co-rulers: Sigurd II (1136–1155) and Inge I (1136–1161)
Kingdom of Poland – Władysław II the Exile (1138–1146)
Kingdom of Portugal – Afonso I (1139–1185)
Kingdom of Scotland – David (1124–1153)
Kingdom of Sicily - Roger II (1130–1154)
Kingdom of Sweden – Sverker I (1130–1156)
Republic of Venice – Pietro Polani, Doge of Venice (1130–1148)
Wales (List of rulers of Wales)
- Kingdom of Gwynedd – Owain Gwynedd, Prince of Gwynedd (1137–1170)
- Kingdom of Powys – Madog ap Maredudd, Prince of Powys (1132–1160)