The motion picture Star Wars: Episode III Revenge of the Sith premiered in movie theaters during May of 2005. Here is a chronological listing of happenings in 2005 pertaining to Star Wars.
- 02 – The passing of Frank Kelly Freas occurred.
- 24 – The establishment of TT Games took place.
- 25 – The book Labyrinth of Evil was released.
- ?? – The release of Star Wars Insider 80 occurred.
- 02 – Obsession 3 saw publication.
- 08 – Star Wars: Knights of the Old Republic II: The Sith Lords was launched on the Windows operating system.
- 09 – Republic 73 was made available.
- 23 – Empire 29 was released to the public.
- 23 – Star Wars Tales 22 was available in stores.
- 23 – The book Star Wars Tales Volume 5 was published.
- 28 – Star Wars: Republic Commando was launched for PC and Xbox gaming systems.
- 01 – The release of Secrets of the Jedi occurred.
- 02 – The book Star Wars: Clone Wars Adventures Volume 3 was released.
- 04 – Wookieepedia came into existence under the initial name of " Star Wars Wiki ."
- 08 – Star Wars: Republic Commando: Prima Official Game Guide was available in stores.
- 11 – Subscribers received their copy of Star Wars Insider 81.
- 16 – General Grievous 1 was released.
- 16 – Star Wars: Episode III — Revenge of the Sith 1 was published.
- 16 – The trade paperback Star Wars: Episode III — Revenge of the Sith trade paperback was released.
- 16 – The book Star Wars: Visionaries was published.
- 18 – A Hunter's Fate: Greedo's Tale (webstrip) concluded its run on Hyperspace .
- 21 – The episode " Clone Wars Chapter 21 " was broadcast on Cartoon Network .
- 22 – Cartoon Network aired " Clone Wars Chapter 22 ".
- 22 – Star Wars: Clone Wars Volume One was released on DVD format.
- 23 – " Clone Wars Chapter 23 " was broadcast on Cartoon Network.
- 23 – Obsession 4 was released to the public.
- 23 – The release of Republic 74 occurred.
- 23 – The release of Star Wars: Episode III — Revenge of the Sith 2 occurred.
- 24 – The airing of " Clone Wars Chapter 24 " took place on Cartoon Network.
- 25 – Cartoon Network broadcast " Clone Wars Chapter 25 ".
- 28 – Star Wars Insider 81 was available in stores.
- 31 – The article Everyone's a Critic was published on the Wizards of the Coast website.
- 31 – The book Star Wars: Revenge of the Sith: The Movie Storybook was released.
- ?? – The book Plea Bargain was published.
- 02 – The release of Star Wars: Revenge of the Sith: The Visual Dictionary occurred.
- 02 – The novelization Star Wars: Episode III Revenge of the Sith novelization was published.
- 02 – Midnight Madness at Target, Wal-Mart and Toys R Us and 48 Hours of the Force started.
- 05 – LEGO Star Wars: The Video Game was launched on PC, PS2, Xbox, and Gameboy Advanced platforms.
- 13 – The release of Star Wars: Episode III — Revenge of the Sith 3 occurred.
- 20 – The release of Star Wars: Episode III — Revenge of the Sith 4 occurred.
- 21 – The beginning of Celebration III took place.
- 24 – Celebration III was held in Indianapolis, Indiana to celebrate the release of Revenge of the Sith .
- 27 – Empire 30 was released to the public.
- 27 – General Grievous 2 was published.
- 27 – Republic 75 was released.
- 27 – The publication of Empire: Volume Four: The Heart of the Rebellion took place.
- 01 – Five Revenge of the Sith TV Guide covers were published.
- 01 – The Revenge of the Sith junior novelization was published.
- 01 – The Last of the Jedi: The Desperate Mission was released to the public.
- 01 – Star Wars—Free Comic Book Day 2005 Special was available in stores.
- 05 – Star Wars Episode III: Revenge of the Sith (video game) was launched on PS2, Xbox, GBA, Nintendo DS and Mobile Phones.
- 05 – Star Wars Galaxies: Rage of the Wookiees expansion pack was released.
- 10 – The release of Episode III: Revenge of the Sith: Prima Official Game Guide occurred.
- 11 – Star Wars Tales 23 was published.
- 13 – MTV broadcast an episode of Total Request Live featuring the band Good Charlotte to promote the upcoming Star Wars: Episode III Revenge of the Sith .
- 17 – Subscribers received their copy of Star Wars Insider 82.
- 18 – Empire 31 was released to the public.
- 18 – Obsession 5 was published.
- 19 – The US release of Star Wars: Episode III Revenge of the Sith took place.
- 20 - 22 – The sixth Star Wars Weekends event began at Disney-MGM Studios .
- 27 - 29 – Star Wars Weekends continued at Disney-MGM Studios.
- 29 – A Time magazine article about Wikipedia mentioned Star Wars Wiki .
- 30 – Star Wars Insider 82 was available in stores.
- ?? – Bai Ling posed for a Star Wars themed photo shoot in Playboy .
- ?? – The article Droids, Technology and the Force: A Clash of Phenomena was published on Hyperspace .
- 03 - 05 – Star Wars Weekends continued at Disney-MGM Studios.
- 10 - 12 – Star Wars Weekends continued at Disney-MGM Studios.
- 15 – General Grievous 3 was released.
- 15 – Republic 76 was released.
- 24 – What's The Story? feature of Hyperspace was launched.
- 29 – Empire 32 was published.
- 13 – Star Wars Tales 24 was published.
- 20 – The release of Star Wars: Clone Wars Volume 6: On the Fields of Battle occurred.
- 20 – Empire 33 was released to the public.
- 20 – Republic 77 was released.
- 20 – Subscribers received their copy of Star Wars Insider 83.
- 20 – The passing of David Tomblin occurred.
- 21 – The passing of Long John Baldry occurred.
- 25 – The passing of Alf Joint occurred.
- 26 – The book The Joiner King was published.
- ?? – Vader: The Ultimate Guide one-shot souvenir magazine was published.
- 09 – The passing of Katie Johnson occurred.
- 10 – Empire 34 was released to the public.
- 10 – General Grievous 4 was published.
- 23 – The passing of Brock Peters occurred.
- 31 – The passing of Michael Sheard occurred.
- ?? – Star Wars: Republic Commando: Order 66 was launched for Mobile Phone platform.
- ?? – Evasive Action: Recruitment ongoing daily webstrip was published on Hyperspace from August to December.
- ?? – Star Wars Insider 83 was available in stores.
- 01 – The Last of the Jedi: Dark Warning was released to the public.
- 12 – Peter Barbour passed away at the age of 82.
- 13 – Subscribers received their copy of Star Wars Insider 84.
- 14 – Empire 35 was released to the public.
- 19 – The release of The Ultimate Visual Guide occurred.
- 26 – Star Wars Insider 84 was available in stores.
- 27 – The book The Unseen Queen was published.
- 28 – X-Wing: Rogue Leader 1 was released.
- 01 – The release of Creating the Worlds of Star Wars: 365 Days occurred.
- 01 – Dressing a Galaxy: The Costumes of Star Wars was published.
- 02 – The passing of Hamilton Camp occurred.
- 07 – The passing of Charles Rocket occurred.
- 12 – Empire 36 was released to the public.
- 13 – The Star Wars Poster Book was published.
- 17 – The book Star Wars: Complete Locations was released.
- 18 – The passing of John Hollis occurred.
- 19 – Star Wars: Clone Wars Adventures Volume 4 was released to the public.
- 19 – Republic 78 was released.
- 23 – The passing of William Hootkins occurred.
- 25 – The New Essential Chronology was released to the public.
- 26 – X-Wing: Rogue Leader 2 was released.
- 27 – The release of Star Wars Chronicles: The Prequels occurred.
- 27 – Star Wars: Where Science Meets Imagination opened at Museum of Science in Boston, Massachusetts

- 01 – Revenge of the Sith was released on DVD format.
- 01 – Star Wars: Battlefront II was launched.
- 01 – Star Wars Galaxies: Trials of Obi-Wan expansion was released.
- 08 – Star Wars: Grievous Getaway was released.
- 09 – Republic 79 was released.
- 09 – Empire 37 was released to the public.
- 14 – Subscribers received their copy of Star Wars Insider 85.
- 22 – The book Dark Lord: The Rise of Darth Vader was published.
- 23 – X-Wing: Rogue Leader 3 was released.
- 28 – Star Wars Insider 85 was available in stores.
- 28 – SciFi.com chose Wookieepedia as its Sci Fi Site of the Week.
- 30 – The release of Star Wars: Clone Wars Volume 7: When They Were Brothers occurred.
- ?? – Star Wars: Battle for the Republic was launched.
- 01 – The Last of the Jedi: Underworld was released to the public.
- 06 – Star Wars: Clone Wars Volume Two was released on DVD format.
- 21 – Republic 80 was released.
- 21 – Empire 38 was released to the public.
- 27 – The book The Swarm War was published.
- 28 – Star Wars: Purge was published.
- 28 – The General Grievous trade paperback was released.
- ?? – Star Wars Manga: Black was published.
- Polarization trilogy Challenge Revelations Showdown For Every Action trilogy Preemptive Strike Counterstrike Strike III Heart of Evil trilogy A Plague of Darkness Destruction A Hero Seeks Not Vengeance
- The ending of Publication of Star Wars occurred.