List of state leaders in 1243

This is a list of heads of state, government leaders, and other rulers in the year 1243.

Asia

• China (Southern Song dynasty) - Emperor Lizong (1224–1264)
• Korea (Goryeo Kingdom) – Gojong (1213–1259)
• Japan (Kamakura period)
  • Monarch – Emperor Go-Saga (1242–1246)
  • Kamakura shogunate - Kujō Yoritsune (1226–1244)
  • Shikken - Hōjō Tsunetoki (1242–1246)
• Khmer Empire –
  1. Indravarman II (1220–1243)
  2. Jayavarman VIII (1243–1295)
• Mongol Empire – Töregene Khatun, Regent (1241–1246)
• Pagan Kingdom – Kyaswa (1234–1250)

Europe

• Principality of Achaea – Geoffrey II Villehardouin (c. 1228–1246)
• County of Angoulême – Hugh I (1218–1249)
• Kingdom of Aragon – James I (1213–1276)
• County of Barcelona – James I (1213–1276)
• Duchy of Brittany – John I (1237–1286)
• Bulgarian Empire – Kaliman I, Tsar of Bulgaria (1241–1246)
• Crown of Castile – Ferdinand III (1217–1252)
• County of Champagne – Theobald IV (1201–1253)
• Kingdom of Denmark – Eric IV (1241–1250)
• Kingdom of England – Henry III (1216–1272)
• County of Flanders – Jeanne (1205–1244)
• Kingdom of France – Louis IX (1226–1270)
• Kingdom of Gwynedd – Dafydd ap Llywelyn, Prince of Gwynedd (1240–1246)
• Holy Roman Empire – Frederick II (1220–1250)
  • Kingdom of Bohemia - Wenceslaus I (1230–1253)
  • County of Holland – William II (1234–1256)
• Kingdom of Hungary – Béla IV (1235–1270)
• Grand Duchy of Lithuania – Mindaugas (1236–1253)
• Kingdom of Navarre – Theobald I (1235–1253)
• Kingdom of Norway – Haakon IV (1217–1263)
• Duchy of Poland –
  1. Konrad of Mazovia, High Duke of Poland (1241–1243)
  2. Bolesław V the Chaste, High Duke of Poland (1243–1279)
• Kingdom of Portugal and the Algarves – Sancho II (1223–1247)
• Kingdom of Scotland – Alexander II (1214–1249)
• Kingdom of Sweden – Eric XI (1222–1229, 1234–1250)

Middle East and North Africa

• Almohad Caliphate – Ali (1242–1248)
• Principality of Antioch – Bohemond V (1233–1252)
• Armenian Kingdom of Cilicia – Hethum I (1226–1270)
• Kingdom of Cyprus – Henry I (1218–1253)
• Sultanate of Damascus (Ayyubid dynasty) - As-Salih Ismail (1239–1245)
• Egypt (Ayyubid dynasty) – As-Salih Ayyub (1240–1249)
• Sultanate of Rûm – Kaykhusraw II (1237–1246)
• Empire of Trebizond – Manuel I (1238–1263)