Alexander Obiefoka Enukora Animalu (born 28 August 1938) is a Nigerian academic, who is Professor Emeritus of Physics at the University of Nigeria, Nsukka. He holds a BSc (London), M.A. (Cantab.) and PhD (Ibadan), FAS, NNOM, IOM A pioneer of solar energy in Nigeria, Animalu is a physicist of international repute, member of the highest advisory body on Science and Technology to the Nigerian government, Honorary Presidential Advisory Council on Science and Technology (2001–03) and former Director National Mathematical Centre, Abuja.