There are tiny communities of Roman Catholics in Tunisia, Algeria, Libya, and Morocco due to colonial rule - French rule for Algeria, Tunisia, and Morocco, Spanish rule for Morocco and Western Sahara, and Italian rule for Libya.
Most Christians in North Africa are foreign missionaries, immigrant workers, and people of French, Spanish, and Italian colonial descent.
The North African Christians of Berber or Arab descent mostly converted during the modern era or under and after French colonialism.

Arguably, many more Maghrebi Christians of Arab or Berber descent live in France than in North Africa, due to the exodus of the pieds-noirs in the 1960s.
Charles de Foucauld was renowned for his missions in North Africa among Muslims, including African Arabs.

Today conversions to Christianity have been most common in Algeria, especially in the Kabylie, and Morocco and Tunisia.
A 2015 study estimates 380,000 Muslims converted to Christianity in Algeria.
While it's estimated that between 8,000-40,000 Moroccans converted to Christianity in the last decades; although some estimate the number to be as high as 150,000.
In Tunisia, however, the number of Tunisian Christians is estimated to be around 23,500.
There are tiny communities of Roman Catholics in Tunisia, Algeria, Libya, and Morocco due to colonial rule - French rule for Algeria, Tunisia, and Morocco, Spanish rule for Morocco and Western Sahara, and Italian rule for Libya. Most Christians in North Africa are foreign missionaries, immigrant workers, and people of French, Spanish, and Italian colonial descent. The North African Christians of Berber or Arab descent mostly converted during the modern era or under and after French colonialism.
Arguably, many more Maghrebi Christians of Arab or Berber descent live in France than in North Africa, due to the exodus of the pieds-noirs in the 1960s. Charles de Foucauld was renowned for his missions in North Africa among Muslims, including African Arabs.
Today conversions to Christianity have been most common in Algeria, especially in the Kabylie, and Morocco and Tunisia. A 2015 study estimates 380,000 Muslims converted to Christianity in Algeria. While it's estimated that between 8,000-40,000 Moroccans converted to Christianity in the last decades; although some estimate the number to be as high as 150,000. In Tunisia, however, the number of Tunisian Christians is estimated to be around 23,500.
Arab Christians