Religion in Egypt controls many aspects of social life and is endorsed by law. The state religion of Egypt is Islam, although estimates vary greatly in the absence of official statistics. Since the 2006 census, religion has been excluded, and thus available statistics are estimates made by religious and non-governmental agencies. The country is majority Sunni Muslim (estimated to be 85–95% of the population), with the next largest religious group being Coptic Orthodox Christians (with estimates ranging from 5 to 15%). The exact numbers are subject to controversy, with Christians alleging that they have been systemically under-counted in existing censuses.
The history of religion in Egypt stretches over thousands of years, from ancient polytheism to Christianity and then Islam. Despite the customary division of Egyptian history into discrete eras, Ancient Egypt, Greco-Roman, and Islamic Egypt, strong threads of continuity run through Egypt's religious and cultural life. Many customs and beliefs practiced today, such as funerary laments, rural food traditions, and ideas about the afterlife, can be traced to ancient Egyptian origins, and having survived inside later religious identities. Even when new religions supplanted older ones, Egyptians frequently reinterpreted them through inherited cultural lenses, ensuring that the essence of their civilizational identity remained intact beneath outward transformations.
Egypt hosts two major religious institutions. Al-Azhar, founded in 970 CE by the Fatimids as the first Islamic university in Egypt and the Coptic Orthodox Church of Alexandria established in the middle of the 1st century by Saint Mark.
Ancient Egyptian religion emerged in prehistory and its traditions remained vital for over three thousand years. While beliefs shifted across dynasties, it remained centered on a pantheon of deities tied to natural and cosmic forces. Some gods, such as Ra (often merged with Amun as Amun-Ra) and Isis, became especially prominent. During Akhenaten's reign in the 14th century BCE, a short-lived monotheism emerged, focusing on Aten.
Religion was integrated with the state, grounded in myth and ritual. The pharaoh, seen as semi-divine, acted as a bridge between gods and people, justifying massive state investment in temples and ceremonies. Alongside state religion, personal devotion flourished through prayer and offerings, especially as pharaonic authority weakened. Funerary practices were central, aimed at ensuring life after death through mummification, tomb goods, and offerings.
Though it endured through foreign rule under Persian, Greek, and Roman occupation, ancient Egyptian religion eventually declined with the rise of Christianity. Christianity arrived in the first century CE. According to tradition, Saint Mark founded the Church in Alexandria in 42 CE, beginning a patriarchal succession that continues today.
Roman persecution shaped a distinct Coptic tradition. The development of Christian monasticism in Egypt and the Christianising missionary activity of the Copts had influence well beyond the boundaries of Egypt.
By the fourth century, tensions with other centers of Christianity emerged. Most Egyptian Christians rejected the Council of Chalcedon's (451 CE) doctrine of two natures in Christ, adhering instead to miaphysitism, the doctrine of one united divine nature. By the sixth century, the Coptic Church had an independent hierarchy led by the Pope of Alexandria and a governing synod.
Islam was introduced to Egypt in the seventh century CE during the early Muslim conquests, initiating a profound religious transformation that would eventually make Egypt a major center of the Islamic world.
The conquest was led by Amr ibn al-As, a close companion of the Prophet Muhammad, completing the conquest of the country by 647 CE. Religious zeal, along with social and economic incentives, propelled expansion of Islam beyond the Arabian Peninsula.
Under Muslim rule, Christians and Jews were recognized as People of the Book and granted protected status as dhimmis. In return for this protection, they were required to pay a special tax called jizya which exempted them from military service. Though conversion was not forced, the proportion of Muslims increased steadily. By the ninth century CE, Islam had become the majority religion in Egypt.
In 969 CE, the Fatimid Caliphate, adherents of Ismailism, a branch of Shia Islam, conquered Egypt. Though they established mosques, institutions, and Al-Azhar University, one of the world's earliest universities, they failed to entrench Ismailism among the population. Internal sectarian conflict, combined with political instability, contributed to the reestablishment of Sunni Islam under the Ayyubid dynasty in 1171, led by Saladin.
The Mamluks, a military caste originally formed of enslaved soldiers under Ayyubid rule, eventually seized power and governed Egypt until the Ottoman conquest in 1517. Throughout these periods, Sunni Islam became entrenched as the dominant religious identity, with Al-Azhar emerging as a preeminent center of Sunni Islamic learning.
Egypt's religious composition is predominantly Muslim, with Christians representing the largest religious minority. According to Egypt's contested 2006 census, approximately 94.9% of Egyptians identified as Muslim, 5.1% as Christian, and less than 1% as adherents of other religions.
Census data since 1927 has recorded a steady decline in the Christian population, from 8.3% that year to 5.7% by 1996. However, these official figures have been widely disputed. Christian leaders and sources have long argued that they are undercounted in state statistics, with unofficial estimates ranging from 10% to 25% of the population.
In 2017, Al Ahram and the Washington Institute for Near East Policy estimated the Christian population at 10–15%, while international surveys have reported comparable results. Afrobarometer (2016) and Arab Barometer (2019) estimated the Christian population at 10.3% and 9.6%, respectively.
The CIA World Factbook similarly reported Egypt's population as approximately 90% Sunni Muslim and 10% Christian, an estimate echoed by the U.S. State Department and its Commission on International Religious Freedom, the UK Foreign and Commonwealth Office, and other international agencies.
In 1998, Youssef Courbage, research director at the French National Institute for Demographic Studies (INED), and Philippe Fargues, a demographer, professor, and emeritus member of the European University Institute (EUI), defended the reliability of official statistics and argued that the Egyptian numbers are consistent both over the whole period and at each individual moment in time. They added that the Western press often accepts overestimates because it has difficulty acknowledging that a minority is a minority.