Fremont Avenue is a road in Santa Clara County California. It is in Sunnyvale and Los Altos. It has three segments: The first segment, about 4.8 miles long, begins at State Route 82 (El Camino Real) in Sunnyvale, California and ends at South Springer Road in Los Altos, California. The second segment, about 0.9 miles long, begins at Riverside Avenue and ends at Covington Road in Los Altos, California. The third segment, about 0.1 mile long, begins near El Monte Avenue and ends at Tyndall Street and Giffin Road in Los Altos, California. The total length of all three segments is 5.8 miles. The road was named after John C. Frémont, a former U.S. Senator in California. Both the city of Fremont, California and Fremont High School were also named after him.