Cyborg is a 1972 science fiction/secret agent novel written by Martin Caidin. The novel also included elements of speculative fiction. It was adapted as the television movie The Six Million Dollar Man, which was followed by a weekly series of the same name, both of which starred Lee Majors. The movie also inspired a spin-off, The Bionic Woman.

The Six Million Dollar Man is an American science fiction and action television series, running from 1973 to 1978, about a former astronaut, USAF Colonel Steve Austin, portrayed by Lee Majors. After a NASA test flight accident, Austin is rebuilt with bionic implants that give him superhuman strength, speed and vision. Austin is then employed as a secret agent by a fictional U.S. government office titled OSI. The series was based on Martin Caidin's 1972 novel Cyborg, which was the working title of the series during pre-production.