List of rulers who converted to Christianity

This is a list of rulers who converted to Christianity. The conversion of monarchs was often an important step in the process of Christianization.

1st century

 * Abgar V, King of Osroene with his capital at Edessa, c. 1st century

4th century

 * Ezana of Axum.png
 * Tiridates III of Armenia, King of Armenia, in 301
 * Ezana of Axum, King of Aksum, 320
 * Constantine I, Roman emperor, in 337
 * Mirian III of Iberia, King of Iberia, c. 337

5th century

 * Óengus mac Nad Froích, King of Munster
 * Clovis I, King of the Franks, circa 496-506
 * Rechiar, King of the Suebi

6th century

 * Constantine of Dumnonia
 * Saint Constantine of Strathclyde
 * Rædwald of East Anglia
 * Reccared I, king of visigoths, and Hermenegild, sub-king in Baetica, converted from Arianism to the Nicene faith.

7th century

 * Æthelberht of Kent before 601 (see Gregorian mission)
 * Cenwalh of Wessex
 * Cynegils of Wessex
 * Sigeberht of East Anglia
 * Riderch I of Alt Clut
 * Peada of Mercia
 * Edwin of Northumbria

9th century

 * Boris I of Bulgaria (864)
 * Guthrum (878)
 * Borivoj I, Duke of Bohemia (883)
 * Rorik of Dorestad
 * Harald Klak

10th century

 * Mieszko I of Poland (966)
 * Géza, Grand Prince of the Hungarians (970s)
 * Vladimir I of Kiev (980s)
 * Harald Bluetooth of Denmark and Norway
 * Eric the Victorious
 * Haakon the Good

11th century

 * Olof Skötkonung, King of Sweden (1008)

14th century

 * Jogaila, Grand Duke of Lithuania and King of Poland (1386)

16th century

 * Nzinga of Ndongo and Matamba
 * Afonso I of Kongo
 * Humabon, Rajah of Cebu (1521)
 * Bunao Lakan Dula, Lakan of Tondo (c. 1571)
 * Rajah Matanda of Maynila (1572)
 * Ōtomo Sōrin (although not a direct royalty, Japanese daimyo were de facto independent rulers of their territories)
 * Arima Harunobu
 * Ōmura Sumitada

19th century

 * Hone Heke
 * Keopuolani
 * Ka'ahumanu
 * Kamehameha III
 * Tāmati Wāka Nene
 * Ranavalona II of Madagascar
 * Pomare II
 * Duleep Singh