Charles Everett Koop (October 14, 1916 – February 25, 2013) was an American physician who became well known as a pediatric surgeon at the Children's Hospital of Philadelphia. He was an early name in today's pediatric surgery. He then served as the Surgeon General of the United States and as vice admiral in the Public Health Service Commissioned Corps from 1982 to 1989, under President Ronald Reagan.

He was thought of as the first "celebrity Surgeon General", because he is the first Surgeon General to receive an Emmy Award, and remains the only Surgeon General to have done so. Koop was also called Chick Koop by some of his friends.