Star Trek III
Star Trek III might refer to:
 , third of the Star Trek films
 Star Trek III: The Search for Spock (Atari), the unreleased game for the Atari 2600 and 5200
 Star Trek III: The Search for Spock (Betamax), the Betamax release
 Star Trek III: The Search for Spock (CED), the CED release
 Star Trek III: The Search for Spock (VHD), the VHD release
 Star Trek III: The Search for Spock (LaserDisc), the LaserDisc release
 Star Trek III: The Search for Spock (VCD), the VCD release
 Star Trek III: The Search for Spock (DVD), the "vanilla" DVD release
 Star Trek III: The Search for Spock (2009 DVD), the digitally remastered version of the original theatrical cut on DVD
 Star Trek III: The Search for Spock (Special Edition), the special edition DVD
 Star Trek III: The Search for Spock (Blu-ray), the Blu-ray Disc release
 Star Trek III: The Search for Spock/Star Trek IV: The Voyage Home (DVD), combined DVD release with The Voyage Home
 Star Trek III: The Search for Spock (soundtrack), the soundtrack
 Star Trek III: The Search for Spock (expanded soundtrack), the expanded soundtrack
 Star Trek III: The Search for Spock (novel), the novelization
 Star Trek III: The Search for Spock (comic), the comic adaptation
 Star Trek III: The Search for Spock - Short Stories, short stories written for young children based on the film
 Star Trek III: Starship Combat Game, the supplement for the Star Trek: The Role Playing Game by FASA
 Star Trek III (Gene Roddenberry), Gene Roddenberry's pitch for his third iteration of Star Trek, following Phase II
 Star Trek 3, a collection of TOS episode novelizations, written by James Blish
 Star Trek Log 3, a collection of TAS episode novelizations, written by Alan Dean Foster
 , the third film in the rebooted film franchise set in the alternate reality