The Subaru Vivio is a car. It was introduced in March 1992, as a 660 cc small car (K-car) manufactured by Subaru.

The name Vivio is a reference to the number 6 6 0 written in Greek, and also inspired by the word vivid. The Vivio replaced the Subaru Rex nameplate. It was available in 3 and 5 door versions. The "Vivio Bistro" is a variation with a retro theme, with Mini-esque front and rear-end, upholstery of a matching theme and modifications to the dashboard. The Bistro series was popular and Japan would see a string of modern small cars modified to appear retro.

Like the larger Subarus, the Vivio was available with a variety of supercharged 4 cylinder engines, with an emphasis on performance.

The Vivio T-top is a limited production, coupe-convertible version. It is a two-seater with detachable roof (in two halves).

In October 1998, the keicar regulation changed, prompting manufacturers to release new models. The Vivio was replaced by the Subaru Pleo at this time. The Pleo was subsequently replaced by the Subaru R2 in December 2003.