Space Usagi is a space opera spinoff of Usagi Yojimbo written and illustrated by Stan Sakai. The series features characters similar to those in the original series, including a descendant of Miyamoto Usagi, but set in a futuristic setting that also emulated Feudal Japan in political and stylistic ways. Three miniseries of three issues each and two short stories featuring the characters were produced. The first two miniseries, "Death and Honor" and "White Star Rising", were published by Mirage Comics from 1992 to 1994, and the third, "Warrior" was published by Dark Horse Comics in 1996 (the third Space Usagi miniseries was the first work by Stan Sakai to be published by Dark Horse Comics). In addition, the short story "Under The Same Sky" was printed in Usagi Yojimbo Color Special No. 3 in September 1992, and the short story "Hare Today, Gone Tomorrow was published as a backup story in Teenage Mutant Ninja Turtles No. 47. All Space Usagi material produced to date is available in a single trade paperback volume from Dark Horse Comics.
Sakai has announced tentative plans to produce a fourth Space Usagi miniseries, but nothing has been officially announced yet. A Space Usagi animated series was planned during the early 1990s, but the failure of Bucky O'Hare and the Toad Wars discouraged further development. Space Usagi was one of the action figures produced under the Teenage Mutant Ninja Turtles line.