The Orthodox Christianity, the religion of the majority, was brought by St. Nino (deceased in 338) in the first half of the 4^th century and spread thereafter all over the country. In the 5^th century the Georgian Church was established and the Bible was translated into Georgian. Most Jewish immigrants who were deported from Palestine and then came to Georgia converted to Christianity in the course of time, except for a minority who has preserved their religion. Islam reached to this country in quite early periods and spread especially in the southern regions. The Russian domination beginning from the 19^th century prevented the spread of Islam and caused the majority of Muslims migrate to Turkey and Iran. Today Muslim in this country is approximately 1.500.000. Lack of an official record related to the exact number lies in the fact that the former Soviet regime did not record the religion of citizens in the census and banned the Muslim names to be assumed. Therefore, it is almost impossible to obtain robust information on this matter. Especially in Stalin period such factors as demolishing the religious buildings, ban on the religious education and assuming Muslim names caused substantial recession in Islam in this country. Today Islam is known and practiced rather by the old generation. In Ajara, which was under the Ottoman rule until 1878, the majority of the population is Muslims and follows the Hanafi sect like Abkhazians and Ossetians. However, these people too face to a systematic Christianization policy today because the freedom of religion obtained in 1990 has apparently served in favor of the Orthodox to increase their activities, rather than Muslims.

Inherited from the Ottoman and Iran periods, there were once more than 200 mosques in Tbilisi, Batumi and in some other provinces. Unfortunately, they were either destroyed, or closed or assigned to other activities in the Soviet period. Today, the number of the mosques that were allowed to re-open or built has exceeded 200 after the collapse of the Soviet regime.