Updated: December 14, 2020

Star Trek/Planet of the Apes: The Primate Directive is a five-issue crossover comic book series produced in partnership by IDW Comics and Boom! Studios and released between December 2014 and April 2015. The series was written by brothers Scott and David Tipton, with artwork by Rachael Stott, her debut work. The Primate Directive combine elements and characters from the original Star Trek series and the original Planet of the Apes film series. It features Captain James T. Kirk seeking to prevent the Klingons from installing a puppet gorilla government on the planet, which requires them working with various Apes characters such as George Taylor, Cornelius and Zira.

The Tipton brothers were approached by IDW to write the series after their work on the crossover miniseries Star Trek: The Next Generation/Doctor Who: Assimilation2. Stott's artwork included the likeness of Charlton Heston, which was allowed after an agreement between IDW and the Heston estate. The first issue, released on December 31, 2014, saw sales of over 53,000, though sales figures would subsequently drop. However, the series has been received positively by critics, who praised Stott's artwork and the nature of how the two franchises interacted.