Sergey Anatolyevich Romanov (Russian: Сергей Анатольевич Романов), born 20 September 1958, is a Russian scientist, internal dosimetry and radiation protection specialist, PhD in biology (2003). He currently serves as Director in the Southern Urals Biophysics Institute, having been appointed in 1997. He is the author and coauthor of more than 150 research papers.