A Star Trek RPG or Star Trek Role Playing Game is a role-playing game in the fictional Star Trek universe. Players can be captains of their own starships or ensigns at Starfleet Academy and everything in between.

Star Trek RPGs can be played via in-person acting, email, instant messaging or IRC, or forums.

There are several Star Trek RPG's:

• Star Trek The Role Playing Game , 1982, FASA
• Prime Directive, 1993, Task Force Games
• Star Trek The Next Generation Roleplaying Game , 1998, Last Unicorn Games
• Star Trek Online Upcoming MMORPG
• Star Trek Deep Space Nine Roleplaying Game , 1999, Last Unicorn Games
• Star Trek Roleplaying Game , 1999, Last Unicorn Games
• Star Trek Voyager Roleplaying Game , 2000, Last Unicorn Games
• GURPS Prime Directive, 2002, Amarillo Design Bureau
  Based on Prime Directive, but with the GURPS ruleset.
• Star Trek Roleplaying Game , 2002, Decipher Games
• STSF.net- (2002-Present), StarTrek.com's Official Online Role Playing Forum