This is a list of state leaders in the 9th century (801–900) AD.
Maya civilization
Tibet
Uzbekistan
Turks
China
Japan
Korea: North–South States Period
Indonesia: Java
Malaysia: Peninsular
Thailand
Vietnam
Afghanistan
Bengal and Northeast India
India
Sri Lanka
Mesopotamia
Persia
Yemen
Great Britain: Scotland
Great Britain: Northumbria
Great Britain: England
Great Britain: Wales
Ireland
Holy Roman Empire in Italy
Iberian Peninsula
Marca Hispanica
Franks
Middle Francia
West Francia
Easter Island