Christian revival is a term that generally refers to a specific period of increased spiritual interest or renewal in the life of a church congregation or many churches, either regionally or globally. This should be distinguished from the use of the term "revival" to refer to a evangelistic meeting or series of meetings (see Revival meeting).

While elements such as mass conversions of non-believers and beneficial effects on the moral climate of a given culture may be involved, revivals are seen by leaders as the restoration of the church itself to a vital and fervent relationship with God after a period of decline.

Historians have different numbering and dating systems. There were "Awakenings" around the years 1727, 1792, 1830, 1857, 1882 and 1904. More recent revivals include those of 1906 (Azusa Street Revival), 1930s (Balokole), 1970s (Jesus people) and 1909 Chile Revival which spread in the Americas, Africa, and Asia among Protestants and Catholics.

Many Christian revivals drew inspiration from the missionary work of early monks, from the Protestant Reformation (and Catholic Reformation) and from the uncompromising stance of the Covenanters in 17th century Scotland and Ulster, that came to Virginia and Pennsylvania with Presbyterians and other non-conformists. Its character formed part of the mental framework that led to the American War of Independence and the Civil War.

Hamza Yusuf Hanson is an American Islamic scholar, and (with Zaid Shakir and Hatem Bazian) is co-founder of Zaytuna College in Berkeley, California, United States. He is a convert to Islam, and is one of the signatories of A Common Word Between Us and You, an open letter by Islamic scholars to Christian leaders, calling for peace and understanding. He has described the 9/11 attacks as "an act of 'mass murder, pure and simple'". Condemning the attacks, he has also stated "Islam was hijacked ... on that plane as an innocent victim".The Guardian newspaper in the United Kingdom reported that he "is arguably the west's most influential Islamic scholar" and added that "many Muslims find his views hard to stomach."

Hamza Yusuf was born to two academics in Washington State and raised in Northern California. In 1977, he became Muslim and subsequently traveled to the Muslim world and studied for ten years in the United Arab Emirates, Saudi Arabia, as well as North and West Africa. Hamza Yusuf spent four years studying in the United Arab Emirates and elsewhere in the Middle East. Later he traveled to West Africa and studied in Mauritania, Medina, Algeria, and Morocco under such scholars as Murabit al Haaj; Baya bin Salik, head of the Islamic court in Al-'Ain, United Arab Emirates; Muhammad Shaybani, Mufti of Abu Dhabi; Hamad al-Wali; and Muhammad al-Fatrati of Al Azhar University in Cairo, Egypt.^{[citation needed]} After more than a decade abroad, he returned to the United States and earned degrees in nursing from Imperial Valley College and religious studies at San José State University.^{[citation needed]}