List of state leaders in 1142

This is a list of heads of state, government leaders, and other rulers in the year 1142.

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 -
    1. Emperor Sutoku (1123–1142)
    2. Emperor Konoe (1142–1155)
  • 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)

Europe

• Kingdom of Aragon – Petronilla (1137–1162)
• Kingdom of England – Stephen (1135–1154)
• Kingdom of France – Louis VII (1137–1180)
• Kingdom of Germany – Conrad III (1138–1152)
  • County of Holland – Dirk VI (1121–1157)
• Kingdom of Hungary – Géza II (1141–1161)
• Kingdom of Portugal – Afonso I (1139–1185)
• 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)