List of state leaders in 890

889 state leaders - Events of 890 - 891 state leaders - State leaders by year-----

Africa

Asia

*Bohai/Balhae - Da Xuanxi/Dae Hyeon-seok, King of Bohai/Balhae (871-895)
*"'Byzantine_Empire - Leo VI, Byzantine Emperor (886 - 912)
*China (Tang Dynasty) - Zhaozong, Emperor of Tang China (888-904)
*Japan -
**Monarch - Emperor Uda, emperor of Japan (887-897)
**Regent (Kampaku) - Fujiwara no Mototsune, Kampaku (887-890)
*Silla - Jinseong, Queen of Silla (887-897)

Europe

*Asturias - Alfonso III the Great, King of Asturias (866-910)
*Bulgaria - Vladimir, Knyaz of Bulgaria, (889–893)
*"'Byzantine Empire - Leo VI, Byzantine Emperor (886 - 912)
*Cordoba - Abdallah ibn Muhammad , Emir of Cordoba (888-912)
*East Francia - Arnulf of Carinthia, King of East Francia (877-899)
*Norway - Harald I Fairhair, King of Norway (872-933)
*Scotland - Donald II, King of Scots (889-900)
*Venice - Pietro Tribuno, Doge of Venice (888-912)
*Wales -
**Anarawd ap Rhodri, King of Gwynedd (878-916)
*Western Francia - Odo, King of Western Francia (888-898)

Middle East

*"'Byzantine_Empire - Leo VI, Byzantine Emperor (886 - 912)