Denis M. MacEoin (26 January 1949 – 6 June 2022^{[citation needed]}) was a British academic, scholar and writer with a focus on Persian, Arabic and Islamic studies. He authored several academic books and articles, as well as many pieces of journalism. Since 2014 he published a number of essays on current events with a Middle Eastern focus at the Gatestone Institute, of which he was a Senior Fellow.^[1] He was a Senior Editor from 2009 to 2010 at Middle East Quarterly, a publication of the American think tank Middle East Forum, where he was also a Fellow.^[1]

From 2006 to 2015 MacEoin wrote a blog entitled A Liberal Defence of Israel, "designed to correct the false impression that Israel is an illiberal, fascist, or apartheid state."^[2] In 2007 he authored a report entitled The Hijacking of British Islam,^[3] which garnered considerable criticism labelling him as a neo-conservative^[4] and accusations of forgery.^[5]

As a novelist, MacEoin wrote under the pen names Daniel Easterman and Jonathan Aycliffe.^[1][6] MacEoin was a former Baháʼí^[7] and wrote in 2009 that he considers himself a secular humanist.^[8]

In early June 2022, MacEoin died at 73 due to coronavirus^{[citation needed]} complications.

MacEoin was born in Belfast, Northern Ireland. He received a B.A. and M.A. in English Language and Literature at the Trinity College Dublin, an M.A. in Persian, Arabic, and Islamic studies at the University of Edinburgh (1975), and a Ph.D. in Persian and Islamic studies at King's College, Cambridge (1979).^[1][9][6]

From 1979 to 1980, he taught English, Islamic Civilization, and Arabic-English translation at Mohammed V University in Fez, Morocco, resigning from the university shortly after commencing employment there. MacEoin claimed the resignation was due to disputes over contract changes, working environment and payment for his services as a Lecturer.^[1] He then taught at Newcastle University, but his Saudi sponsors dropped him for teaching "heretical subjects", following which he left academia.^[6]

MacEoin was an active member of the Baháʼí Faith from 1966 to 1980, during which time he lectured and wrote in support of his faith.^[7] In the late 1970s he wrote a manuscript on the Bábí movement. As a Baháʼí publishing material on the religion, he was required to submit his material for a Baháʼí review process, and his manuscript was rejected.^[10] He resigned from the Bahá'í Faith^[11] and later published the material with E.J. Brill as The Sources for Early Bābī Doctrine and History.^[12]

MacEoin went on to write critically of the origins of the Baháʼí Faith, and engaged in several years of writing about it, including 18 articles in Encyclopedia Iranica from 1985 to 1990.^[13]

In 1982 and 1983 MacEoin wrote two critical articles in the journal Religion: "The Babi Concept of Holy War", which viewed the origins of the Bábí movement through the lens of jihad, martyrdom, and political struggles;^[14] and "From Babism to Bahá'ísm: Problems of Militancy, Quietism, and Conflation in the Construction of a Religion",^[15] which continued along the same themes, questioning the number of martyrs and Western re-interpretations of the Bábís. That began a series of public debates in the journal. In 1985 two Baháʼí authors, Afnan and Hatcher, published "Western Islamic Scholarship and Bahá'í Origins"^[16] criticising MacEoin's recent articles. MacEoin responded with another article a year later in the same journal, "Bahā'ī fundamentalism and the academic study of the Bābī movement",^[17] responding to the criticism.

Further exchanges in the journal Religion continued. Afnan and Hatcher provided a response that MacEoin tried to discredit them as "outraged fundamentalists", attempted to stigmatise Baháʼí institutions as devious, and attempted to picture MacEoin himself as an objective scholar "persecuted by Baháʼís".^[18] MacEoin responded again that, "The real issue is between academic and non-academic approaches to the subject... a believing bacteriologist and mathematician who are trying to defend their religion against what seems to them an attack on its integrity".^[19] MacEoin later published "The Crisis in Babi and Bahá'í Studies: Part of a Wider Crisis in Academic Freedom?" in British Society for Middle Eastern Studies.

In 2007, Baháʼí author Moojan Momen wrote "Marginality and Apostasy in the Baha'i Community",^[7] in the journal Religion, labelling Denis MacEoin as an "apostate" from the Baháʼí Faith, who "began to write academic papers attacking the Bahá'í Faith", focusing on the Bahá'í Administration.^[7] Momen pointed to MacEoin's comparison of the persecution of Baháʼís in Iran to the anti-cult movement in the West as particularly egregious.^[7] According to Momen, the attacks from MacEoin continued up to 2005.