The Subaru Justy is a subcompact hatchback that has been sold by Japanese automobile manufacturer Subaru since 1984. Subaru manufactured the Justy from 1984 to 1994; since then it has sold rebadged versions of other vehicles under the Justy nameplate. The company introduced the latest iteration, a rebadged Daihatsu Boon, at the 2007 Frankfurt Motor Show with a 1.0 or 1.2-liter straight-three engine, front/four wheel drive, electronically controlled continuously variable transaxle, or a 5-speed manual transaxle. For the 2010 model year, the Justy was replaced with the Subaru Trezia. The Justy nameplate was revived in November 2016 as a rebadged Toyota Tank and its twin counterpart the Toyota Roomy and Daihatsu Thor.

Subaru is the automobile manufacturing division of Japanese transportation conglomerate Subaru Corporation, the twenty-first largest automaker by production worldwide in 2017.