List of state leaders in 255

See also
List of state leaders in 254 Events of 255 List of state leaders in 256 State leaders by year

This is a list of heads of state, government leaders, and other rulers in the year 255.

Africa

Bactria and Gandhara - Peroz I, Kushanshah (c.250-265)
Chera - Ilamcheral Irumporai, King of Chera (241-257)
China (Three Kingdoms)
- Shu Han - Liu Shan, Emperor of Shu Han (223-263)
- Wei - Cao Mao, Emperor of Wei (254-260)
- Wu - Sun Liang, Emperor of Wu (252-258)
Gupta Empire - Maharaja Sri-Gupta, King of the Gupta Empire (240-280)
Iberia - Mithridates II Mihrdat, King of Iberia (249-265)
Korea (Three Kingdoms Period)
- Baekje - Goi, King of Baekje (234-286)
- Gaya Confederacy - Geodeung, King of Gaya (199-259)
- Goguryeo - Jungcheon, King of Goguryeo (248-270)
- Silla - Cheomhae, King of Silla (247-261)
Kushan Empire - Kanishka III, King of the Kushans (255-275)
Persia - Shapur I of Persia, King of Persia (241-272)
Armenia - Sassanid Kingship (252-287)
Tuoba - Tuoba Liwei, Chieftain of the Tuoba clan (219-277)

Roman Empire -
- Valerian, Roman Emperor in the East (253-260)
- Gallienus, Roman Emperor in the West (253-268)