List of state leaders in 1303

This is a list of heads of state, government leaders, and other rulers in the year 1303.

Africa

• Ethiopian Empire – Wedem Arad (1299–1314)

Asia

• China (Yuan dynasty) - Emperor Chengzong (1294–1307)
• Japan (Kamakura period)
  • Monarch – Emperor Go-Nijō (1301–1308)
  • Kamakura shogunate - Prince Hisaaki (1289–1308)
  • Shikken - Hōjō Morotoki (1301–1311)
• Korea (Goryeo Kingdom) – Chungnyeol (1274–1308)

Europe

• Kingdom of Aragon – James II (1291–1327)
• Kingdom of Bohemia – Wenceslaus II (1278–1305)
• Bulgarian Empire – Theodore Svetoslav, Tsar of Bulgaria (1300–1321)
• Byzantine Empire – Andronikos II Palaiologos (1282–1328)
• Crown of Castile – Ferdinand IV (1295–1312)
• Kingdom of Denmark – Eric VI (1286–1320)
• Kingdom of England – Edward I (1272–1307)
• Kingdom of France – Philip IV (1285–1314)
• Holy Roman Empire (House of Habsburg) - Albert I, King of the Romans (1298–1308)
  • County of Hainaut (House of Avesnes) - John II (1257–1304)
• Kingdom of Hungary – Wenceslaus III (1301–1305)
• Grand Duchy of Lithuania – Vytenis (1295–1316)
• Kingdom of Norway – Haakon V (1299–1319)
• Kingdom of Poland – Wenceslaus II (1291–1305)
• Kingdom of Portugal and the Algarves – Denis (1279–1325)
• Kingdom of Sweden - Birger (1290–1318)

Middle East and North Africa

• Kingdom of Cyprus – Henry II (1285–1306)
• Mamluk Sultanate of Egypt – Al-Nasir Muhammad (1299–1309)
• Ilkhanate – Ghazan (1295–1304)
• Ottoman Beylik Osman I ((1299–1326)