List of state leaders in 1340

This is a list of heads of state, government leaders, and other rulers in the year 1340.

Africa

• Ethiopian Empire – Amda Seyon I (1314–1344)
• Mamluk Sultanate of Egypt –
  1. Al-Nasir Muhammad (1309–1340)
  2. Saif ad-Din Abu-Bakr (1340–1341)
• Morocco (Marinid dynasty) - Abu al-Hasan Ali ibn Othman (1331–1351)
• Waalo – Sam Dyakekh, King of Waalo (1336–1343)
• Warsangali Sultanate
  1. Gerad Ibrahim (1328–1340)
  2. Gerad Omer (1340–1355)
• Zeng Empire – Daud IV, King of Kilwa (1334–1357)

Asia

• Chagatai Khanate – Yesun Temur (1338–1342)
• China (Yuan dynasty) - Emperor Huizong (1333–1370)
• Kingdom of Chūzan - Seii (1337–1355)
• Delhi Sultanate – (Tughlaq dynasty) - Muhammad bin Tughluq (1325–1351)
• Gondwana – Sabala Simha (1325–1354)
• Kingdom of Hokuzan – Haniji (1322–1395)
• Jandarids (Celebi dynasty) - Altynbash, Bey of Sinop (1300–1355)
• Japan (Nanboku-chō period)
  • Monarch (Northern Pretender) - Emperor Kōmyō (1336–1348)
  • Monarch (Southern Court) - Emperor Go-Murakami (1339–1368)
  • Ashikaga shogunate - Ashikaga Takauji (1338–1358)
• Kamata Kingdom – (Khen dynasty) - Durlabh Narayan (1330–1350)
• Korea (Goryeo Kingdom) – Chunghye (1339–1344)
• Madurai Sultanate –
  1. Qutb-ud-Din Firuz (1339–1340)
  2. Ghiyas-ud-Din Muhammad Damghani (1340–1344)
• Kingdom of Nanzan – Ofusato (1337–1396)
• Ottoman Empire – Orhan I, Ottoman Bey (1326–1359)
• Vijayanagara Empire (Sangama dynasty) - Harihara I (1336–1354)
• Western Ganga dynasty – Narasimha Deva III (1328–1352)

Europe

• Giudicato of Arborea – Peter III, Giudice of Arborea (1336–1347)
• Crown of Castile – Alfonso XI (1312–1350)
• Kingdom of Cyprus – Hugh IV (1324–1359)
• Kingdom of Denmark –
  1. interregnum (1332–1340)
  2. Valdemar IV (1340–1375)
• Kingdom of England – Edward III (1327–1377)
• Kingdom of France – Philip VI (1328–1350)
• Republic of Genoa – Simone Boccanegra, Doge of Genoa (1339–1344; 1356–1364)
• Hebrides – John I, Lord of the Hebrides (1330–1387)
• Kingdom of Hungary – (House of Capet–Anjou) - Charles I (1312–1342)
• Grand Duchy of Lithuania – Gediminas (1316–1341)
• Livonia – Eberhard von Monheim, Landmaster of Livonia (1328–1340)
• Kingdom of Norway – Magnus VII (1319–1355 (as defacto 1343–1355))
• Novgorod –
  • President of the Council of Novgorod - Vasili Kalika (1330–1352)
• Kingdom of Portugal and the Algarves – Afonso IV (1325–1357)
• Kingdom of Scotland – David II (1329–1371)
• Kingdom of Sweden – Magnus II (1319–1363)
• Republic of Venice – Bartholomew Gradenigo, Doge of Venice (1339–1342)

Balkans

• Kingdom of Albania – Robert (1332–1364)
• Bulgarian Empire – Ivan Alexander, Tsar of Bulgaria (1331–1371)
• Byzantine Empire – Andronikos III Palaiologos (1328–1341)
• Latin Empire of Constantinople – Catherine II (1308–1346)
  • Aegina - Boniface II, Count of Aegina (1338–1374)
  • Anaphe – Domenic, Lord of Anaphe (1338–1358)
• Kingdom of Serbia – Stefan Uroš IV Dušan (1331–1355)

Holy Roman Empire

• Holy Roman Empire (House of Wittelsbach) - Louis IV (1314–1347)
• Lower Alsace – Ulrich, Landgrave of Lower-Alsace (1308–1343)
• County of Anhalt-Bernburg – Bernhard III (1318/1324–1348)
• Principality of Anhalt-Zerbst –
  • Albert II co-ruler (1316–1362)
  • Waldemar I co-ruler (1316–1367)
• Patria del Friuli (Patriarchate of Aquileia) – Bertrando di San Genesio (1334–1350)
• Prince-Bishopric of Augsburg – Henry III von Schönegg (1337–1348)
• Duchy of Austria (House of Habsburg) - Albert II (1330–1358)
• Margraviate of Baden-Eberstein – Herman IX (1314–1362)
• Margraviate of Baden-Hachberg – Henry IV (1330–1369)
• Margraviate of Baden-Pforzheim – Rudolf IV (1333–1353)
• Margraviate of Baden-Sausenberg – Rudolf II (1313–1352)
• Prince-Bishopric of Bamberg – Leopold II von Egloffstein (1335–1343)
• County of Bar – Henry IV (1337–1344)
• Duchy of Brabant – John III (1312–1355)
• Prince-Bishopric of Basel – Johann II von Munsingen (1335–1365)
• County of Hainaut (House of Avesnes) - William IV (1337–1345)
• Kingdom of Bohemia (House of Luxembourg) - John I (1310–1346)
• Electorate of Cologne – Walram of Jülich (1332–1349)
• Electorate of Mainz – Heinrich III von Virneberg (1328–1346)
• Electorate of Saxony – Rudolf I, Duke of Saxe-Wittenberg (1298–1356)
• Archbishopric of Trier – Baldwin of Luxembourg (1307–1354)

North America

• Aztec Empire – Tenoch, Great Speaker (1325–1376)