Yang Ji-won (born 1949) is a professor in Department of Chemical & Biomolecular Engineering at KAIST (Korea Advanced Institute of Science and Technology) and CEO of ABC (Advanced Biomass R&D Center), which is a key research institutes for biofuel and bio-refinery in South Korea. He received B.S. from Seoul National University, and Ph.D. from Northwestern University. He joined KAIST as a faculty member in 1986 and his research area has covered a wide range of topics in environmental biotechnology. Dr. Yang has more than 200 publications and supervised 50 post-graduate students.