List of state leaders in 456

455 state leaders – Events of 456 – 457 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 Xiaowu, Emperor of Liu Song (454–464)
  • Northern Wei Dynasty - Emperor Wencheng, Emperor of Northern Wei (452–465)
• Gupta Empire - Skanda Gupta, Gupta Emperor (455–467)
• Japan (Kofun Era)
  • Emperor Ankō, Emperor of Japan (c. 453-c. 456)
  • Emperor Yūryaku, Emperor of Japan (c.456-c.479)
• Korea (Three Kingdoms) -
  • Baekje - Gaero, King of Baekje (454–475)
  • 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)
  • opposed by Chilperic I (443-c.480)
• Byzantine Empire - St. Marcian (450–457)
• Ireland - Lóegaire mac Néill, High King of Ireland (c. 428-c. 458)
• Kingdom of Kent
  • Hengest (c. 455–488)
  • Horsa (c. 455–488)
• Salian Franks - Merowig, King of Salian Franks (447–457)
• Visigothic Kingdom - Theodoric II (453–466)
• Western Roman Empire - Avitus (455–456)

Middle East

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