List of state leaders in 1420

This is a list of heads of state, government leaders, and other rulers in the year 1420.

Africa

• Ethiopian Empire – Yeshaq I (1414–1429)

The Americas

• Inca Empire – Viracocha (1410–1437)

Asia

• China (Ming dynasty) - Yongle Emperor (1402–1424)
• Delhi Sultanate – Khizr Khan (1414–1421)
• Japan (Muromachi period)
  • Tennō - Emperor Shōkō (1412–1428)
  • Ashikaga shogunate - Ashikaga Yoshimochi (1394–1423)
• Korea (Joseon Dynasty) - Sejong the Great (1418–1450)
• Ryukyu Islands
  • Kingdom of Chūzan - Shō Shishō (1407–1421)
  • Kingdom of Nanzan – Taromai (1415–1429)

Europe

• Kingdom of Aragon – Alfonso V (1416–1458)
• Kingdom of Bosnia – Tvrtko II, restored (1421–1433)
• Duchy of Burgundy – Philip III, the Good (1419–1467)
• Byzantine Empire – Manuel II Palaiologos (1391–1425)
• Kingdom of Castile – John II (1406–1454)
• Kingdom of Denmark – Eric VII, King of Denmark (1397–1439)
• Kingdom of England – Henry V (1413–1422)
• Kingdom of France – Charles VI of France the Well-Beloved, later the Mad (1380–1422)
• Holy Roman Empire - Sigismund, King of the Romans (1410–1437)
  • Bavaria-Straubing (civil war) (house of Wittelsbach) -
    • Jacqueline, Duchess of Bavaria-Straubing and Countess of Holland and County of Hainaut (1417–1432)
    • John, Duke of Bavaria-Straubing and Count of Holland and County of Hainaut (1417–1425)
  • Margraviate of Meissen (Wettin) - Wilhelm der Reiche (1381–1425) and Friedrich der Streitbare (1381–1428)
  • Duchy of Milan – Filippo Maria Visconti (1412–1447)
  • Landgraviate of Thuringia (Wettin) - Friedrich IV der Friedfertige (1406–1440)
• Kingdom of Hungary - Sigismund of Luxembourg (1387–1437)
• Grand Duchy of Lithuania - Vytautas the Great, Grand Duke of Lithuania (1392–1430)
• Principality of Moldavia – Alexander I (1400–1432)
• Grand Duchy of Moscow – Vasily I (1389–1425)
• Kingdom of Naples – rival claimants:
  • Joanna II (1414–1435)
  • Louis III (1417–1426)
• Kingdom of Navarre – Charles III (1387–1425)
• Kingdom of Norway - Eric III (1389–1442)
• Kingdom of Poland – Władysław II Jagiełło (1386–1434)
• Kingdom of Portugal and the Algarves – John I (1385–1433)
• Kingdom of Scotland – James I (1406–1437)
• Kingdom of Sweden – Eric XIII, King of Sweden (1396–1439)
• Republic of Venice – Tommaso Mocenigo, Doge of Venice (1414–1423)

Middle East and North Africa

• Aq Qoyunlu (White Sheep Turkomans) – Qara Osman (1403–1435)
• Kingdom of Cyprus – Janus (1398–1432)
• Mamluk Sultanate of Egypt – Sayf-ad-Din Tatar (1412–1421)
• Golden Horde – contested between Dawlat Berdi and Olugh Mokhammad (1419–1421)
• Ottoman Empire – Mehmet I, Ottoman Sultan (1413–1421)
• Persia (Timurid dynasty) - Shah Rukh (1405–1447)
• Empire of Trebizond – Alexios IV (1416–1429)