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.
Maghreb
Recently, the Protestant community of Berber or Arab descent has experienced significant growth, and conversions to Christianity, especially to Evangelicalism, is common in Algeria, especially in the Kabylie, Morocco and Tunisia. A 2015 study estimates 380,000 Muslims converted to Christianity in Algeria. The number of the Moroccans who converted to Christianity (most of them secret worshipers) are estimated between 40,000-150,000. The International Religious Freedom Report for 2007 estimates thousands of Tunisian Muslims have converted to Christianity. A 2015 study estimate some 1,500 believers in Christ from a Muslim background living in Libya.