Diane Carey is an author of science fiction novels, most notably those of the Star Trek franchise. She is the co-creator, with John J. Ordover, of the spinoff series, New Earth, and its continuation series, Challenger.

Among her other Star Trek novels are the original series books Star Trek: First Frontier, Star Trek: Dreadnought!, Starfleet Academy, the Starfleet Academy novel Cadet Kirk, and the The Next Generation novel Ghost Ship.