List of state leaders in 1503

This is a list of heads of state, government leaders, and other rulers in the year 1503.

Africa

• Ethiopian Empire – Na'od (1494–1508)
  • Adal Sultanate – Muhammad ibn Azhar ad-Din (1488–1518)
• Kingdom of Kongo – João I (1470–1509)
• Sennar Sultanate – Amara Dunqas (1503–1533/4)
• Songhai Empire – Askia Mohammad I, Askia of the Songhai Empire (1493–1528)

Americas

• Aztec Empire – Moctezuma II (1502–1520)
• Inca Empire – Huayna Capac (1493–1527)

Asia

• Kingdom of Cochin
  1. Unniraman Koyikal I (c. 1500–1503)
  2. Unniraman Koyikal II, King of Cochin (1503–1537)
• China (Ming dynasty) - Hongzhi Emperor (1487–1505)
• Japan (Sengoku period)
  • Monarch – Emperor Go-Kashiwabara (1500–1526)
  • Ashikaga shogunate - Ashikaga Yoshizumi (1494–1508)
• Joseon (Korea) – Yeonsangun (1494–1506)
• Ryukyu Kingdom – Shō Shin (1477–1526)

Europe

• Andorra –
  • Pere de Cardona, Bishop of Urgell and Co-Prince of Andorra (1472–1515)
  • Catherine of Navarre, Co-Princess of Andorra (1483–1516)
• Kingdom of Aragon – Ferdinand II the Catholic (1479–1516)
• Crown of Castile – Isabella I (1474–1504)
• Crimean Khanate – Meñli I Giray (1478–1515)
• Kingdom of Denmark and Norway – Hans (1481–1513)
  • Duchy of Schleswig – Frederick I (1490–1533) and John I (1481–1513) in condominial rule
• Kingdom of England – Henry VII (1485–1509)
• Kingdom of France – Louis XII (1498–1515)
  • Lordship (seigneurie) of Albret – Alain I (1471–1522)
  • Duchy of Alençon – Charles IV (1492–1525)
  • County of Armagnac – Margaret (1481–1549)
  • Bourbonnais –
    1. Peter II, Duke of Bourbon (1488–1503) and Count of Marche (1477–1503)
    2. Suzanne, Duchess of Bourbon (1503–1525)
  • Duchy of Brittany – Anne (1488–1514)
  • County of Nevers – Engelbert of Cleves (1491–1506)
• Holy Roman Empire – Maximilian I (1493–1519)
  • County of Arenberg – Eberhard IV (1496–1531)
  • Margraviate of Baden-Baden – Christoph I (1475–1515)
  • Baden-Sausenberg – Philip of Hachberg-Sausenberg (1487–1503)
  • Bavaria-Landshut – George the Rich (1479–1503)
  • Bavaria-Munich – Albert IV (1467–1508)
  • County of Bentheim-Bentheim – Eberwin II (1473–1530)
  • County of Bentheim-Lingen –
    • Otto (1450–1508)
    • Nicholas III (1493–1508)
  • County of Bentheim-Steinfurt – Arnold II (1454–1506)
  • County of Bentheim-Tecklenburg – Otto VIII (1493–1526)
  • Electorate of Brandenburg – Joachim I Nestor (1499–1535)
  • Margraviate of Brandenburg-Ansbach – Frederick I, Margrave of Ansbach (1486–1515) and Margrave of Bayreuth (1495–1515)
  • Archbishopric of Bremen – Johann Rode von Wale (1497–1511)
  • Duchy of Brunswick-Lüneburg – Henry IV (1491–1514)
  • County of Burgundy – Philip IV the Fair, Duke of Brabant, Count of Burgundy and County of Artois (1482–1506)
  • County of Castell –
    • George I (1498–1528)
    • Wolfgang I (1498–1546)
  • Duchy of Cieszyn – Kazimierz II (1477–1528)
  • Electorate of Cologne – Hermann IV of Hesse (1480–1508)
  • Duchy of Cleves–County of Mark – John II the Pious (1481–1521)
  • County of East Frisia – Edzard I, the Great (1491–1528)
  • Duchy of Ferrara and Duchy of Modena and Reggio – Ercole I d'Este (1471–1505)
  • Fürstenberg-Baar - Wolfgang, Count of Fürstenberg-Baar (1499–1509)
  • Duchy of Guelders – Charles II (1492–1538)
  • Landgraviate of Hesse – William II (1500–1509)
  • Duchy of Holstein – Frederick I (1490–1533) and John I (1481–1513) in condominial rule
  • Isenburg-Büdingen - Louis II, Count of Isenburg-Büdingen (1461–1511)
  • Königsegg – John IV, Baron of Königsegg (1500–1544)
  • Archbishopric of Magdeburg – Ernst II of Saxony (1475–1513)
  • Electorate of Mainz – Bertold von Henneberg-Römhild (1484–1504)
  • Margravate of Mantua – Francesco II Gonzaga (1484–1519)
  • Duchy of Mecklenburg-Schwerin –
    1. Magnus II (1477–1503)
    2. Heinrich V (1503–1552)
    3. Albrecht VII (1503–1547)
  • Principality of Mindelheim – Georg von Frundsberg (1478–1528)
  • Nassau-Weilburg – Louis I, Count of Nassau-Weilburg (1492–1523)
  • Nieder-Isenburg - James, Count of Nieder-Isenburg (1486–1503)
  • Limburg-Styrum –
    • John III, Count of Limburg-Styrum (1473–1510)
    • Adolph, Count of Limburg-Styrum (1493–1505)
  • Duchy of Lorraine – René II (1473–1508) and Duke of Bar (1483–1508)
  • Duchy of Opole – John the Good (1476–1532)
  • Principality of Orange – Philibert of Châlon (1502–1530)
  • Ortenburg-Neuortenburg - Ulrich II, Count of Ortenburg-Neuortenburg (1495–1524)
  • Öttingen-Wallerstein - Louis XIII, Count of Öttingen-Wallerstein (1449–1517)
  • Electorate of the Palatinate – Philip (1476–1508)
  • Pappenheim – William, Lord of Pappenheim (1482–1508)
  • Duchy of Pomerania – Bogislaw X (1478–1523)
  • Runkel - John, Count of Runkel (1460–1521)
  • Salm-Kyrburg – John VII, Wild- and Rhinegrave of Salm-Kyrburg (1499–1531)
  • Saxony
    • Electorate of Saxony Ernestine branch - Frederick III (1486–1525)
    • Duchy of Saxony Albertine branch - George (1500–1539)
  • Duchy of Saxe-Lauenburg – John V (1463–1507)
  • County of Sayn –
    • Gerhard III (1493–1506)
    • John IV (1498–1529)
  • Schönborn – John IV, Lord of Schönborn (1490–1529)
  • Bishopric of Sion – Matthäus Schiner (1499–1522)
  • Solms-Braunfels – Otto II, Count of Solm-Braunfels (1459–1504)
  • Stadion (state) – Nicholas, Lord of Stadion (1479–1507)
  • Stolberg-Stolberg - Henry IX, Count of Stolberg-Stolberg (1455–1511)
  • Archbishopric of Trier –
    1. Johann II of Baden (1456–1503)
    2. Jakob von Baden (1503–1511)
  • Archbishopric of Utrecht – Frederik IV van Baden (1496–1517)
  • County of Wied –
    • William III (1487–1526)
    • John I (1487–1533)
  • Bishopric of Worms –
    1. Johann II von Dalberg (1482–1503)
    2. Reinhard von Rüppurr (1503–1523)
  • Duchy of Württemberg – Ulrich (1498–1519)
  • Bishopric of Würzburg – Lorenz von Bibra (1495–1519)
• Kingdom of Hungary – Ladislaus II (1490–1516) and King of Bohemia (1471–1516)
• Ireland
  • Kingdom of Airgíalla – Rossa mac Maghnusa (1497–1513)
  • Kingdom of Breifne – Eoghan mac Tighearnain Oig (1500–1528)
  • Kingdom of East Breifne – Seaan mac Cathail (1491–1510)
  • Uí Maine – Maelsechlainn mac Tadhg Ó Cellaigh (1499–1511)
    • Síol Anmchadha – Breasal mac Eoghan Ua Madadhan, Lord of Síol Anmchadha (1479–1526)
  • Kingdom of Leinster – Muircheartach mac Donnchadh MacMurrough-Kavanagh (1478–1512)
  • Kingdom of Magh Luirg – Cormac MacDermott (1499–1528)
• Principality of Moldavia – Stephen III the Great (1457–1504)
• Grand Duchy of Moscow – Ivan III of Russia (1462–1505)
• Kingdom of Navarre –
  • Catherine, Queen of Navarre and Countess of Foix (1483–1516)
  • John III d'Albret (1484–1516)
• Ottoman (Turkish) Empire – Bayezid II (1481–1512)
• Papal States –
  1. Pope Alexander VI (1492–1503)
  2. Pope Pius III (1503)
  3. Pope Julius II (1503–1513)
• Kingdom of Poland–Grand Duchy of Lithuania – Alexander Jagiellon (1492–1506)
  • Duchy of Masovia –
    1. Konrad III Rudy (1454–1503)
    2. Stanislaus I (1503–1524)
    3. Janusz III (1503–1526)
• Kingdom of Portugal and the Algarves – Manuel I (1495–1521)
• Duchy of Savoy – Philibert II, Duke of Savoy (1497–1504)
• Kingdom of Scotland – James IV (1488–1513)
• Kingdom of Sweden – Sten Sture the Elder, Regent of Sweden (1501–1503)
• Teutonic Order – Friedrich of Saxony, Grand Master (1497–1510)
• Republic of Venice – Leonardo Loredan, Doge of Venice (1501–1523)
  • Duchy of the Archipelago – Francesco III Crispo (1500–1511)
• Principality of Wallachia – Radu IV the Great (1495–1508)

Middle East and North Africa

• Mamluk Sultanate of Egypt – Al-Ashraf Qansuh al-Ghawri (1501–1516)