List of state leaders in 456

See also
List of state leaders in 455 Events of 456 List of state leaders in 457 State leaders by year

This is a list of heads of state, government leaders, and other rulers in the year 456.

Africa

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

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)

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)