Transformers: Cybertron, known as Transformers: Galaxy Force (トランスフォーマー ギャラクシーフォース) in Japan and Asia, is an anime series which debuted on January 8, 2005. It is set in the Transformers universe. Produced by TV Aichi, Weve, Tokyu Agency and animated by Gonzo, the series is directed by Hiroyuki Kakudō and Manabu Ono, with Hiro Masaki handling series composition, Takashi Kumazen deg the characters, Mitsuru Ōwa serving as the mechanical and prop designer and Megumi Ōhashi composing the music. A corresponding toy line was released with the series.

The series was conceived by Hasbro as the final installment of a trilogy formed with the previous two series, Transformers: Armada and Transformers: Energon. However, the Japanese production did not follow through on this intent, scripting the series as an independent story unconnected to the preceding shows. The English dub partially modified the series to establish links back to Armada and Energon, including changes to dialogue and small portions of new animation. Trevor Devall (who voices Scourge in the Series) voiced Megatron in early episodes the English dub before previous voice actor David Kaye returned, reprising the role from the show's predecessors. Other voice actors include Garry Chalk reprising the role of Optimus Prime, Brian Drummond as the voices of Jolt and Jetfire (replacing Scott McNeil), Kirby Morrow as the voice of Hot Shot (Replacing Brent Miller), Paul Dobson as the Voices of Overhaul (episodes 1 to 16) and Landmine (replacing Ward Perry), Scott McNeil as the voices of Snarl and Backstop, Brian Dobson reprising the role of Red Alert, Richard Newman as the voice of Vector Prime, Michael Dobson returning as Starscream, Ted Cole as the voice of Sideways (replacing Paul Dobson), Peter Kelamis as the voice of Wing Saber (replacing Colin Murdock), and Lisa Ann Beley as the voice of Override.

In the anime, all of the Transformers are computer-generated, while the humans and backgrounds are rendered in traditional cel animation. Telecom Animation Film Company helped with the backgrounds. It was the last series in the Transformers franchise to be produced in Japan until the release of Transformers Go! in 2013.