Andrew Streitwieser was an American chemist known for his contributions to physical organic chemistry. Streitwieser was born in 1927 in Buffalo, New York and he grew up in New York City. He attended Columbia College and then Columbia University where he earned a PhD in the research group of William von Eggers Doering in 1952. He then was a postdoctoral fellow in the laboratory of John D. Roberts at MIT. He has been Professor of Chemistry at the University of California, Berkeley since 1953.