Helena Sheehan is an academic philosopher, historian of science, philosophy, culture and politics. Sheehan is Professor Emeritus at Dublin City University, where she taught media studies and history of ideas in the School of Communications. She was a visiting professor at the University of Cape Town on several occasions. She has been active on the left since the 1960s. She has given many conference papers and public lectures in universities and other bodies in USA, USSR, GDR, Mexico, Canada, Ireland, UK, France, Germany, Czechoslovakia, Yugoslavia, Greece and South Africa.