Donald M. O'Rourke, MD is an American neurosurgeon, and the John Templeton, Jr., MD Professor of Neurosurgery at the Perelman School of Medicine at the University of Pennsylvania. He graduated from Harvard University (Magna Cum Laude) with an A.B. in Biochemistry and Molecular Biology in 1983, and attended medical school at the University of Pennsylvania where he also completed neurosurgical residency training. He established the institution's human brain tumor tissue bank in 2001. An elected member of the American Academy of Neurological Surgery, his research at the Translational Center of Excellence in the Abramson Cancer Center focuses on Glioblastoma Multiforme, especially the design and investigation of Chimeric Antigen Receptor (CAR T-cell) immune therapies