Algeria–Holy See relations
Although Islam is the state religion of Algeria, the Holy See has maintained a comparatively good relationship with the Algerian authorities, with Léon-Étienne Duval being famously recognized as the "bishop of Muslims" after the departure of French colonists.
Christianity in Africa
In 2009, the UNO counted 45,000 Roman Catholics and 50,000 to 100,000 Protestants in Algeria. Conversions to Christianity have been most common in Kabylie, especially in the wilaya of Tizi Ouzou. In that wilaya, the proportion of Christians has been estimated to be between 1% and 5%. A 2015 study estimates 380,000 Muslims converted to Christianity in Algeria.