List of highways numbered 318

The following highways are numbered 318:

Canada

 * Nova Scotia Route 318.svg Nova Scotia Route 318
 * PEI Highway 318.svg Prince Edward Island Route 318
 * Saskatchewan Highway 318 (jct).svg Saskatchewan Highway 318

China

 * Kokudou 318(China).svg China National Highway 318

Costa Rica

 * CR RNT 318.svg National Route 318

Japan

 * Japanese National Route Sign 0318.svg Japan National Route 318

United States

 * Arkansas 318.svg Arkansas Highway 318
 * Colorado 318.svg Colorado State Highway 318
 * Connecticut Highway 318.svg Connecticut Route 318
 * Florida:
 * Florida 318.svg Florida State Road 318 (former)
 * Levy County 318.svgMarion County 318.svg County Road 318, several roads in Florida
 * Georgia 318.svg Georgia State Route 318 (former)
 * Indiana 318.svg Indiana State Road 318 (former)
 * Louisiana 318.svg Louisiana Highway 318
 * MD Route 318.svg Maryland Route 318
 * MN-318.svg Minnesota State Highway 318 (former)
 * MT-sec-318.svg Montana Secondary Highway 318
 * Nevada 318.svg Nevada State Route 318
 * New York:
 * NY-318.svg New York State Route 318
 * County Route 318 (Wayne County, New York)
 * Ohio State Route 318 (former)
 * PA-318.svg Pennsylvania Route 318
 * Secondary Tennessee 318.svg Tennessee State Route 318
 * Texas:
 * Texas 318.svg Texas State Highway 318 (former)
 * Texas FM 318.svg Farm to Market Road 318
 * Utah SR 318.svg Utah State Route 318
 * Virginia 318.svg Virginia State Route 318
 * WY-318.svg Wyoming Highway 318

Other areas:
 * PR secondary 318.svg Puerto Rico Highway 318
 * Ellipse sign 318.svg U.S. Virgin Islands Highway 318