937 state leaders - Events of 938 - 939 state leaders - State leaders by year

Africa

Asia

• Byzantine Empire
  • Constantine VII, Byzantine Emperor (913-959)
  • Romanus I, Byzantine Emperor (919-943)
• China (Five Dynasties and Ten Kingdoms Period) -
  • Later Jin Dynasty - , Emperor of Later Jin (936-942)
  • Chu - , King of Chu (932-947)
  • Dingnan - Li Yixing, Dingnan Jiedushi (935-967)
  • Jingnan (Nanping) - Gao Conghui, King of Nanping (928-948)
  • Later Shu - Meng Chang, Emperor of Later Shu (934-965)
  • Min - , Emperor of Min (935-939)
  • Southern Han - Liu Yan, Emperor of Southern Han (917-941)
  • Southern Tang - , Emperor of Southern Tang (937-943)
  • Wuyue - , King of Wuyue (932-941)
• Japan -
  • Monarch - Emperor Suzaku, emperor of Japan (930-946)
  • Regent (Sessho) - Fujiwara no Tadahira, Sessho (930-941); Kampaku (941-949)
• Khitan Empire - Taizong, Khitan Emperor (926-947)
• Korea (Goryeo Dynasty) - Taejo, King of Goryeo (918-943)

Europe

• Benevento - , Prince of Benevento (910-943)
• Bohemia - Boleslav I, Duke of Bohemia (935-972)
• Bulgaria - Peter I, Tsar of Bulgaria (927-969)
• Byzantine Empire
  • Constantine VII, Byzantine Emperor (913-959)
  • Romanus I, Byzantine Emperor (919-943)
• England - Aethelstan, King of England (924-939)
• France - Louis IV, King of France (936-954)
  • Anjou - Fulk I, Count of Anjou (898-941)
  • Aquitaine - Ebalus, Duke of Aquitaine (927-935)
  • Burgundy - Hugh the Black, Duke of Burgundy (923-952)
  • Flanders - Arnulf I, Count of Flanders ((918-964)
  • Gascony - , Duke of Gascony (c.930-?)
  • Normandy - William Longsword, Duke of Normandy (927-942)
  • Toulouse - . Count of Toulouse (924-950)
• Germany - Otto I, King of Germany (936-973)
  • Bavaria - , Duke of Bavaria (938-947)
  • Franconia - . (911-939)
  • Swabia - , Duke of Swabia (926-949)
• Italy - Hugh of Arles, King of Italy (924-947)
• Kievan Rus - Igor, Grand Prince of Kiev (912-945)
• Papal States - Leo VII, Pope (936-939)
• Rome - Alberic II, Duke of Spoleto and ruler of Rome (932-954)
• Scotland - Constantine II, King of Scotland (900-943)

Middle East

• Abbasid Caliphate - Ar-Radi, Abbasid Caliph (934-940)
• Byzantine Empire
  • Constantine VII, Byzantine Emperor (913-959)
  • Romanus I, Byzantine Emperor (919-943)