Nelson M. Oyesiku is a Nigerian-American professor of neurosurgery and endocrinology. With a specialty in pituitary medicine and surgery, currently, he is the chair of the department of Neurological Surgery and Professor of Medicine (Endocrinology) at the University of North Carolina in Chapel Hill. he has been editor-in-chief of Neurosurgery, Operative Neurosurgery, and Neurosurgery Open. He was previously chair of the American Board of Neurological Surgery, among other organizations.