Stergios Logothetidis (Greek: St?????? ?????et?d??; born 9 November 1953) is a Greek physicist and a full time professor at the solid-state physics department of Aristotle University of Thessaloniki.
He is the founder and director of the Lab for Thin Films – Nanosystems and Nanometrology (LTFN).
The scientific and research activities of LTFN are focused on the areas of: nanotechnology, organic electronics, nanomedicine, nano-bioelectronics and thin films.