26 PhD programmes offered by the university

The Lehigh Ph.D. program in Chemistry at Lehigh University consists of approximately one-third formal course work and two-thirds independent study and research.

Students in the Ph.D. program of Applied Mathematics at Lehigh University take the qualifying examination in the same two areas, algebra and real analysis, within two years. They test in statistics and applied probability for those in the statistics track, and analysis and differential equations for students in the applied mathematics track.

Students in the Computer Engineering  graduate program at Lehigh University conduct cutting-edge research in a variety of fields including database and information systems, Internet search, graphics, user interfaces, Web-based systems, multimedia and image processing, bioinformatics, intelligent systems, computer architecture, robotics, secure systems, networks, embedded systems, and mobile computing.

Earth and Environmental Sciences (EES) at Lehigh University is a diverse department that blends contributions from geologists, ecologists, and environmental scientists. Its goal is to stimulate learning about the fundamental physical, chemical, geological, and biological processes that shape Earth’s natural environment.

Through course selection in the Mathematics master's program at Lehigh University, a student can specialize in pure mathematics, applied mathematics or statistics.

Mechanical Engineering at Lehigh University is one of the core disciplines in the P.C. Rossin College of Engineering and Applied Sciences.