Jon Edward Ahlquist

Jon Edward Ahlquist (born 1944) is an American molecular biologist and ornithologist and artist who has specialized in molecular phylogenetics before his retirement. In 1988, Ahlquist and Sibley were awarded the Daniel Giraud Elliot Medal by the National Academy of Sciences. In January 1991, Charles Sibley (1917–1998) together with Ahlquist published Phylogeny and Classification of Birds, which presented a new phylogeny for birds based on DNA-DNA hybridisation techniques, known as the Sibley-Ahlquist taxonomy.

Ahlquist is a Young Earth Creationist.