Bio is the surname of the following notable people:
Benito Owusu Bio (born 1968), Ghanaian politician
Carla Bio (born 2002), Indonesian football forward
Fatima Bio (born 1980), Sierra Leonean actress and screenwriter, wife of Julius
Ibrahim Bio (born April 1957), Nigerian politician
Julius Maada Bio (born 1964), Sierra Leonean politician
Rose Atinga Bio (born 1957), Ghanaian police commissioner