The Toyota Avalon is a full-size sedan produced by Toyota. It is Toyota's largest front-wheel drive sedan and serves as its flagship sedan in the United States, Canada, China and the Middle East. It was also produced in Australia from April 2000 until June 2005, when it was replaced in November 2006 by the Aurion. The first production Avalon rolled off the TMMK assembly line in Georgetown, Kentucky, in September 1994, and subsequent generations have all been manufactured at the Kentucky location to date.

Full-size car—also known as large car—is a vehicle size class which originated in the United States and is used for cars larger than mid-size cars. It is the largest size class for cars. In Europe, it is known as E-segment or F-segment.