Alexandros Sakellariou studied Philosophy, Pedagogics and Psychology at the Faculty of Philosophy of Athens (2000) and he continued his studies on a post-graduate level at Panteion University of Social and Political Sciences of Athens (2003) studying Sociology and Social Psychology. In 2008 he earned his PhD at Panteion University, Department of Sociology, in the field of Sociology of Religion. From 2016 he teaches sociology at the Hellenic Open University as an adjunct member of the teaching staff and from 2011 he works as a researcher in large scale European research projects. His main research interests include among others, sociology of religion and atheism (religious communities, religious identities), sociology of youth, radicalisation and qualitative research methods.

He has over 70 publications in national and international journals, edited volumes and conference proceedings, more than 90 lectures in conferences in Greece and abroad, over 40 book reviews and his interviews, opinion pieces and articles have been published in Greek and international media. He has published two books, “Religion and pandemic in Greek society: Power relations, religious populism and the pending secularisation” (2020, in Greek) and “Atheism in Greek society: From Orthodox religious memory to the atheist religious consciousness” (2022, in Greek).