List of state leaders in 631

630 state leaders - Events of 631 - 632 state leaders - State leaders by year

Africa

America

• Mayas - Pacal II, Ruler of Palenque (615–683)

Asia

• Chalukya - Pulakesi II, Chalukya ruler (609–642)
• China (Tang Dynasty) - Taizong, Emperor of China (627–649)
• Japan (Asuka Period) - Jomei, Emperor of Japan (629–641)
• Korea (Three Kingdoms) -
  • Baekje - Mu, King of Baekje (600–641)
  • Goguryeo - Yeongryu, King of Goguryeo (618–642)
  • Silla - Jinpyeong, King of Silla (579–632)
• Northern India - Harsha of Kannauj (606–648)

Europe

• Avars - Kubrat, Avar Khagan (617–665)
• Byzantine Empire - Heraclius (610–641)
• England (Heptarchy) - Edwin of Northumbria, Bretwalda
  • Kingdom of East Anglia -
    • Egric of East Anglia (629–636)
    • Sigebert of East Anglia (629–634)
  • Kingdom of Essex - Sigeberht I (617–653)
  • Kingdom of Kent - Eadbald (616–640)
  • Mercia - Penda, King of Mercia (ca.626–655)
  • Northumbria - Edwin, King of Northumbria (616–632)
  • Kingdom of Sussex -
  • Wessex - Cynegils, King of Wessex (611–643)
• Frankish Empire - Dagobert I, King of the Franks (629–634)
  • Aquitaine - Charibert II, King of Aquitaine (629–632)
• Lombard Kingdom - Arioald (626–636)
• Scotland
  • Dál Riata - Domnall Brecc, King of Dál Riata (629–642)
  • Kingdom of Strathclyde - Bili I (621–633)
• Visigothic Kingdom -
  • Suintila (621–631)
  • Sisenand (631–636)
• Wales -
  • Kingdom of Gwynedd - Cadwallon ap Cadfan (625–634)
  • Kingdom of Powys - Eiludd Powys (613–642?)

Middle East

• Arabia - Muhammad (to 632)
• Byzantine Empire - Heraclius (610–641)
• Persia
  • Buran, Persian Empress (629–631)
  • Hormizd VI, Persian Emperor (631–632)