Achyut Dattatreya Pusalkar (November 22, 1905 – June 6, 1973) was a renowned Indologist. Ancient Indian history, epics and puranas, and archeology were the fields of his special contribution. His studies on the Epics and Puranas of India are an authoritative work on the subject. He worked with R.C.Majumdar as assistant editor for the History and Culture of Indian People series of the Bharatiya Vidya Bhavan, Mumbai and edited six volumes, also contributing many chapters on a wide-ranging variety of subjects. He edited Bharatiya Vidya (1944-57). He was joint editor (1959-71) of Annals of the Bhandarkar Research Institute, Pune. He live in Kolkata for some years as an editor of some volumes of The Cultural Heritage of India, a publication of the Ramakrishna Mission, Kolkata. He served as the Director of the Post-graduate and Research Department of Bhandarkar Oriental Research Institute (BORI). He published six books, including Swami Vivekananda – A Patriot Saint of Mode