Karl Koopman (1 April 1920 – 22 September 1997) was an American zoologist with a special interest in bats. He worked for many years in the Mammalogy Department of the American Museum of Natural History in New York.

Mammal species named after him include Monticolomys koopmani, Rattus koopmani, and Sturnira koopmanhilli.

Also, a reptile species, Anolis koopmani, is named in his honor.