Fifty-five (55) faculty members of the University of Patras are included in the ranking of the world leading scientists according to the study “Data for updated science-wide author databases of standardized citation indicators” presented for the year 2020 by a group of Stanford University Professors. The lists include the top/leading 100,000 scientists worldwide from all scientific fields, as well as the top 2% of scientists in their scientific subfield who have published at least five articles. The evaluation was based on the impact of their research work and specifically on the citations received according to the Scopus database until the end of 2019.