Kim Eric Drexler (born 25 April 1955) is an American author and engineer, previously a Senior Research Fellow at the Future of Humanity Institute.

Drexler is most famous for his pioneering work on atomically precise manufacturing, especially as presented in his books Engines of Creation,^[1] a popular introduction to the core ideas, and Nanosystems,^[2] a comprehensive graduate-level survey of the field (itself based on his MIT doctoral thesis^[3][4]). More recently, Drexler's research has focused on AI risk, where he has developed an approach he calls Comprehensive AI Services.^[5] Drexler has also made original contributions to the Fermi paradox,^[6] space colonization,^[7] distributed computing,^[8] hypertext publishing,^[9] and other fields.^[10][11]