Hiko is a small, agrarian community in the Tonopah Basin on State Route 318 in Lincoln County, Nevada, United States. It is a census-designated place, with a population of 119 at the 2010 census.

State Route 318 is a state highway in eastern Nevada. It is often used as a shortcut for long-distance traffic along U.S. Route 93, bypassing the longer and less direct route U.S. Route 93 follows between Ely and Crystal Springs. The highway was established in the 1930s as State Route 38 and State Route 38A, and was renumbered to SR 318 in 1976. At a total of 110.762 miles (178.254 km), it is the longest state route in Nevada. The road is used for open speed highway races twice a year.