There are currently 19 Departmental or Inter-Departmental Postgraduate Courses, coordinated by N.T.U.A. Departments, leading to the respective "Post Graduate Specialisation Diploma", with a minimum duration of 17 months. Moreover, N.T.U.A participates in 9 Post-graduate Programmes coordinated by other Greek Universities. After the acquisition of the "Post Graduate Specialisation Diploma", the student can proceed towards submitting a Doctorate Thesis.
There are Currently about 1.500 Ph.D. candidates working on their doctorate thesis at N.T.U.A. The time required for the completion of a Ph.D. programme, including the eventual obtainment of a Postgraduate Diploma, ranges from a minimum of 3 years to a maximum of 6 years. There are approximately 60 Ph.D. nominations every year in the N.T.U.A.