Charles Ofosu Marfo is a Professor in the Department of Language and Communication Sciences at the Kwame Nkrumah University of Science and Technology (KNUST), Kumasi. He is currently the Provost of the College of Humanities and Social Sciences. He has served as the President of the KNUST branch of the University Teachers' Association of Ghana (UTAG) and the National President of UTAG, from 2018 to 2020. He is also a former President of the Linguistics Association of Ghana (LAG).

Prof. Marfo has been a visiting Scholar/Professor at the University of Hong Kong (Centre for African Studies, Department of Linguistics) and the Potsdam University (Department of English and American Studies), Brandensburg, in Germany. He is also an external examiner for a good number of Universities. He serves on several boards including Board of Directors of the House of Faith Credit Union (HoFCU) and Royal Image Broadcasting Network (which includes Royal TV) as Chairman.

Prof. Marfo attended the University of Ghana, Legon-Accra, where he read Linguistics and Philosophy for his B.A. degree with Linguistics major. He further pursued and received M.Phil in Theoretical Linguistics (with a concentration on Phonology and morpho-Syntax) from the University of Tromsø in Norway. He has also obtained Ph.D in Linguistics (specializing in Theoretical Linguistics, particularly in Phonology and Morphosyntax and their interfaces) from the University of Hong Kong.

Prof. Marfo enjoys teaching and does research on various aspects of language (linguistics), literature and communication. He has published widely in these disciplines. He is also a friend of the media; he enjoys commenting on socio-political and other national issues in the media, particularly on radio.