Christianity in Iraq has its roots in the conception of the
Church of the East in the 5th century AD, predating the existence of Islam in the region of Iraq. Iraqi Christians are predominantly native
Assyrians belonging to the
Ancient Church of the East,
Assyrian Church of the East,
Assyrian Pentecostal Church,
Assyrian Evangelical Church,
Mar Thoma Church,
Chaldean Catholic Church,
Syriac Catholic Church and
Syriac Orthodox Church. In Iraq, there is also a significant population of
Armenian Christians whose ancestors had fled from
Turkey during the
Armenian genocide. After the 2003
invasion of Iraq, violence against Christians increased, with reports of abduction, torture, bombings, and killings.
Early Church Christianity was brought to Iraq in the 1st century by
Thomas the Apostle and Mar Addai (
Addai of Edessa) and his pupils
Aggai and
Mari. Thomas was one of the Twelve Apostles while, according to tradition, Addai was one of the first 70 disciples. Later, the
Seljuks invaded Mesopotamia with the support of Kurdish chieftains and tribes. They "destroyed whatever they encountered" and captured and enslaved women. The historian
Ibn Khaldun wrote that the Kurds "spoiled and spread horror everywhere". The
Assyrian Church of the East has its origin in what is now southeastern
Turkey and
Asoristan (Sasanian
Assyria). By the end of the 13th century, there were twelve Nestorian dioceses in a strip from
Beijing to
Samarkand. Northern Iraq remained predominantly
Assyrian,
Eastern Aramaic-speaking and
Christian until the destructions of the 14th-century Muslim warlord of
Turco-Mongol descent,
Timur (Tamerlane), who conquered
Persia,
Mesopotamia and
Syria. The civilian population was decimated, and the ancient city of
Assur was finally abandoned by the Assyrians after a 4000-year history. Timur had 70,000 Christian Assyrians beheaded in
Tikrit and 90,000 more in
Baghdad. Timur rewarded the Kurds for their support by "settling them in the devastated regions, which until then had been inhabited by the followers of the
Church of the East."
Ottoman rule In the 16th century, the
Ottomans reinforced their eastern frontier with what they considered loyal
Sunni Kurd tribes. They settled
Kurdish tribes in these regions and in 1583,
Sultan Murad III "gave huge provinces to the Kurdish tribe of Mokri". According to Aboona, "many regions with numerous Assyrian and Armenian monuments and monasteries became completely populated by the Kurds after
Chaldiran," and Kurdish historians wrote that "the land was cleared at this time, its indigenous inhabitants driven out by force". The Kurdish historian Ali al Qurani affirmed that
Sarsing had "been an Assyrian town and that the Kurds who settled there were immigrants from
Persian Azerbaijan." Phebe Marr noted that "in the north too, many of the Kurdish tribes of Persia migrated to Iraq". British traveler James Rich observed in northern Iraq the "rapid influx of Kurds from Persia... and that their advance never ceased". He noted that "some ten thousand families, comprising seventy thousand souls, were constantly moving across the border". Southgate also observed the "rapid advance and settlement of the Kurds from
Persia into northern Iraq" around that time. Dr. Grant shared an eyewitness account, stating: "Beth Garrnae (the region of Arbil-Kirkuk) once contained a large population of Nestorian Christians, they are now reduced to a few scattered villages... Within the last six years the Koords of Ravandoos and Amadia have successively swept over it.." In the 17th century, a new epoch began when Emir Afrasiyab of Basra allowed the Portuguese to build a church outside of the city of Basra. During
World War I, the Assyrians of northern Iraq, southeastern Turkey, northeastern Syria and northwestern Iran suffered the
Assyrian genocide, which accounted for the deaths of up to 65% of the entire Assyrian population. Just before the Simele massacre of August 11, 1933, Kurds began a campaign of looting against Assyrian settlements. Many Christians moved to the southwards after 1933. Saddam made one of them,
Tariq Aziz, his deputy and foreign minister. Some of those refugees and internally displaced persons (IDPs) were Christians. A 25 May 2007 article noted that in the previous seven months only 69 people from Iraq had been granted
refugee status in the
United States. After the
2003 invasion of Iraq, violence against Christians rose, with reports of abduction, torture, bombings, and killings. In August 2004,
International Christian Concern protested an
attack by Islamists on Iraqi Christian churches that killed 11 people. Ganni was driving with his three deacons when they were stopped and were ordered to convert to Islam; when they refused, they were shot. In 2010, reports emerged in Mosul of people being stopped in the streets, asked for their identity cards, and shot if they had a first or last name indicating
Assyrian or
Christian origin. Many of them took refuge in nearby
Kurdish-controlled regions of Iraq and the Shi'a holy cities of Najaf and Karbala. Christian homes were painted with the
Arabic letter ن (
nūn) for
Nassarah (an Arabic word that means "Christian" or literally "Nazarene") as well as a declaration that they were property of the Islamic State. On 18 July, jihadists reversed course and announced that all Christians would need to leave or be killed. Most Christians who fled had their valuable possessions stolen. According to
Chaldean Catholic Patriarch
Louis Raphaël I Sako, there were no Christians remaining in Mosul in 2015, for the first time in the nation's history. But after Mosul's liberation in 2017, Christian families began to return.
Current situation After the
invasion of Iraq by the
U.S. and
its allies in 2003, Christians were targeted by Islamist extremists. Christians who were too poor or unwilling to leave their ancient homeland fled mainly to
Erbil's Christian suburb of
Ankawa. The war has caused the majority of Christians to leave Iraq. Today, an estimated 150,000 to 400,000 Christians remain in Iraq, down from 1.1 million in 2003. Many Christians have returned to their historic homeland, while few families have returned to Mosul. In an interview with Aid to the Church in Need, in 2014, ten years after the invasion of Mosul by ISIS, Chaldean
Archbishop Bashar Warda, of Erbil, said that of the 13,200 families that had fled Mosul and Nineveh to Iraqi Kurdistan, around 9000 had returned, but that the Christian community still required international aid to avoid a new exodus. As per the constitution, Christians are one of the recognized religious groups in Iraq. The constitution recognizes Aramaic as an official language in the Christian region. Christians participate in the political life of Iraq, although their political influence is limited due to their reduced population. They can take government jobs, access education, and use other facilities, all while facing no political discrimination. In Basra, Christians hold a quota seat on the provincial council, the highest local legislative and oversight authority. He met with Ayatollah
Ali al-Sistani and delivered a message of coexistence between Christians and Muslims in Iraq. In an online conference hosted by pontifical charity
Aid to the Church in Need, in 2024, Nizar Semaan, the Syriac Catholic Archbishop of
Adiabene, in Northern Iraq, said that there is still danger of social fragmentation. "The problem with Iraq is that we are trying to create isolated islands for each community, with no common life. This is dangerous. You can live wherever you want, you can be proud of your identity, but don’t close your island to other people." He further stated that Christians would remain in the region, because "the people here are like olive trees. You can cut them, burn them, but after 10 or 20 years they will continue to give fruit. They tried everything, but we remain, and as a Church we do everything to give a sign of hope”. Although Christians are divided into many different groups and confessions, intermarriage is common and these differences are often neglected at a grassroots level. At an institutional level, ecumenical relations have improved since the persecutions carried out by the Islamic State, with a high point being the yearly joint celebration of the
Exaltation of the Holy Cross, in September. Speaking to International Catholic charity
Aid to the Church in Need,
Chaldean Catholic Archbishop Bashar Warda explained that "young people from all Churches planned the festival together – organising prayers, sports, marathons, concerts, children’s games, and cultural events. Their collaboration became a visible sign of a new future. Older generations watched with admiration as the youth discovered that what unites them – their faith in Christ – is far greater than what divides them. In their hands, the dream of Christian unity in Iraq is already becoming a lived reality." == Relations with non-Christians ==