People often approach me to ask where they can study Positive Psychology in German and get an “official” degree from a University, not from a private institution. Last week at a research conference, I ran into Prof. Willibald Ruch from UZH | Zurich University, who´s among the “big shots” in the field with respect to all things (VIA) character strengths. He´s worked directly with the late Christopher Peterson on some papers.
Willi made me aware of a 2-semester course on Positive Psychology they run at UZH. You can find out everything (in German) via this site. Please note this is a course for professionals, so you already need to have a master´s degree in psychology or a related field to be admitted.