Mavis Sika Okyere (neé Nyarko) is a pipeline integrity engineer at Ghana National Gas Company. She is an expert in risk-based assessment, pipeline integrity, corrosion monitoring, and cathodic protection design. She has experience with piping & pipeline engineering principles as applied to both onshore & offshore conditions. Mavis studied MSc. Gas Engineering and Management at University of Salford, United Kingdom and BSc. Civil Engineering at Kwame Nkrumah University of Science and Technology, Ghana. She worked with LUDA Development Ltd, Bluecrest College, INTECSEA/Worleyparsons Atlantic Ltd, Technip, Ussuya Ghana Ltd, and Ghana Highway Authority. She has published in several books and journals, and is a member of the Institute of Gas Engineers and Managers (IGEM).