The 2008 Tour of California was the third edition of an eight-day, 650-mile (1,045 km) stage race, which began in Palo Alto, then raced through the California redwoods, wine country and the Pacific Coast and finished in Pasadena. The road bicycle racing event was held February 17–24. The 2008 Tour of California is part of the 2007–2008 UCI America Tour and the 2008 USA Cycling Professional Tour.

The Tour of California was an annual professional road cycling stage race on the UCI World Tour and USA Cycling Professional Tour that ran from 2006 to 2019. It was the only event on the top-level World Tour in the United States. The eight-day race covered 650–700 miles (1,045–1,126 km) through the U.S. state of California.