Simeon Chituru Achinewhu (born 15 August, 1946) is a Nigerian food and nutrition biochemist, scholar and university administrator who served as the past president-general of Ogbakor Ikwerre Socio-cultural Organisation Worldwide. He was vice–chancellor of River State University (formerly Rivers State University of Science and Technology), from October 2000 until May 2007. In 2005 he was named the most research active vice-chancellor in the Nigerian university system.