Habilitation is the highest university degree, or the procedure by which it is achieved, in Germany, France, Italy, Poland, Romania and some other European and non-English-speaking countries. The candidate fulfills a university's set criteria of excellence in research, teaching, and further education, which usually includes a second dissertation.
The degree, sometimes abbreviated Dr. habil. (Doctor habilitatus), dr hab. (doktor habilitowany), or D.Sc. (Doctor of Sciences in Russia and some CIS countries), is often a qualification for full professorship in those countries.