Dorothy Catherine Fontana was an American television script writer and story editor, best known for her work on the original Star Trek series.

Star Trek is an American science fiction media franchise created by Gene Roddenberry, which began with the eponymous 1960s television series and became a worldwide pop-culture phenomenon. Since its creation, the franchise has expanded into various films, television series, video games, novels, and comic books, and it has become one of the most recognizable and highest-grossing media franchises of all time.