List of state leaders in 440

439 state leaders – Events of 440 – 441 state leaders – State leaders by year

Africa

• Kingdom of the Vandals and Alans - Geiseric, King of the Vandals and Alans (428–477)

America

• Palenque - "Casper", Ajaw of Palenque (435–487)

Asia

• China (Southern and Northern Dynasties) -
  • Liu Song Dynasty - Emperor Wen, Emperor of Liu Song (424–453)
  • Northern Wei Dynasty - Emperor Tai Wu Di, Emperor of Northern Wei (424–452)
• Gupta Empire - Kumara Gupta I, Gupta Emperor (415–455)
• Japan (Kofun Era) - Emperor Ingyō, Emperor of Japan (c. 411-c. 453)
• Korea (Three Kingdoms) -
  • Baekje - Biyu, King of Baekje (427–454)
  • Goguryeo - Jangsu, King of Goguryeo (413–490)
  • Silla - Nulji, King of Silla (417–458)
• Pallava - Simha Varman II, King of Pallava (438–460)

Europe

• Kingdom of Burgundy - Gundioc (436–473)
• Eastern Roman (Byzantine) Empire - Theodosius II (408–450)
• Suebic Kingdom of Galicia - Rechila (438–448)
• Hun Empire
  • Bleda, King of the Huns (c.437–445)
  • Atilla, King of the Huns (c.437–453)
• Ireland - Lóegaire mac Néill, High King of Ireland (c. 428-c. 458)
• Salian Franks - Clodio, King of Salian Franks (426–447)
• Visigothic Kingdom - Theodoric I (419–451)
• Western Roman Empire - Valentinian III (425–455)

Middle East

• Sassanid Empire - Yazdegerd II, Sassanid King (438–457)