List of state leaders in 1427

This is a list of heads of state, government leaders, and other rulers in the year 1427.

Africa

• Ethiopian Empire – Yeshaq I (1414–1429)

The Americas

• Inca Empire – Viracocha (1410–1437)

Asia

• China (Ming dynasty) - Xuande Emperor (1425–1435)
• Kingdom of Chūzan - Shō Hashi (1422–1439)
• Japan (Muromachi period)
  • Monarch – Emperor Shōkō (1412–1428)
  • Ashikaga shogunate - vacant
• Joseon (Korea) – Sejong the Great (1418–1450)
• Kingdom of Nanzan – Taromai (1415–1429)

Europe

• Kingdom of Aragon – Alfonso V (1416–1458)
• Duchy of Burgundy – Philip III, the Good (1419–1467)
• Byzantine Empire – John VIII Palaiologos (1425–1448)
• Crown of Castile – John II (1406–1454)
• Kingdom of England (House of Lancaster) - Henry VI (1422–1461 and 1470–1471).
• Kingdom of France (House of Valois) - Charles VII (1422–1461)
• Holy Roman Empire (House of Luxembourg) - Sigismund, King of the Romans (1410–1437)
  • Duchy of Bar – René of Anjou (1419–1441)
  • County of Hainaut and County of Holland (Civil war)
    • Jacqueline, duchess of Bavaria-Straubing and countess of Holland and Hainaut (House of Wittelsbach) (1417–1432), ruled in Gouda and surroundings
    • Philip III, the Good, Regent of Hainaut and Holland (House of Valois) (1425–1432), ruled in Hainaut and most of Holland and Zeeland
  • Duchy of Lorraine – Charles II, Duke of Lorraine (1390–1431)
• County of Guastalla – Guido Torelli (1406–1449)
• Grand Duchy of Lithuania – Vytautas the Great (1392–1430)
• Kingdom of Naples – Joanna II (1414–1435)
• Kingdom of Navarre – Blanche I (1425–1441)
• Ottoman (Turkish) Empire – Murad II, Ottoman Sultan (1421–1451)
• Kingdom of Poland – Wladislaus II (1386–1434)
• Kingdom of Portugal and the Algarves – John I (1385–1433)
• Kingdom of Scotland – James I (1406–1437)
• Republic of Venice – Francesco Foscari, Doge of Venice (1423–1457)

Middle East and North Africa

• Aq Qoyunlu (White Sheep Turkomans) – Qara Osman (1403–1435)
• Kingdom of Cyprus – Janus (1398–1432)
• Mamluk Sultanate of Egypt – Barsbay (1422–1437)
• Empire of Trebizond – Alexios IV (1416–1429)