Eric Andrew Stach is an American materials scientist who is a professor at the University of Pennsylvania and an elected fellow of both the American Physical Society (for "development and application of in-situ and operando methods in materials research using transmission electron microscopy") and the Microscopy Society of America. He was also awarded the Eli F. Burton Award in 2009. He was named a "Highly Cited Researcher" in the newly established Cross-Field category in 2018.