Who's Who in Star Trek, Issue 1 was the first of two parts in a reference work encyclopedia of Star Trek published by DC Comics in 1987 to celebrate Star Trek's 20th anniversary, containing information on characters, species, ships, and organizations from The Original Series, The Animated Series, DC's own line of comics, a number of novels, and the four Star Trek films which had been released up to that point. Each article included a piece of artwork by various artists showing the subject in a variety of perspectives and in various situations.