Adrian Albert Naef (born 10 January 1948) is a Swiss writer and musician. One of his best known works is Nachtgängers Logik – Journal einer Odyssee (Suhrkamp 2003), a written statement of his struggle against severe depression. It is the first work of his literary comeback after 28 years, again by the same German publishing house as his debut work Lagebericht (Suhrkamp 1975).