John Blair Vornholt (born February 14, 1951) is an American author, screenwriter and journalist. As an author, he has written numerous media tie-ins, including many Star Trek novels. As a screenwriter, he worked on several animated children's series of the 1980s, including Ghostbusters, Dennis the Menace and Beverly Hills Teens. As a journalist, he has worked as lead writer for The Hollywood Reporter and Tucson Weekly.