List of highways numbered 318
The following highways are numbered 318:
Canada
- Nova Scotia Route 318
- Prince Edward Island Route 318
- Saskatchewan Highway 318
China
- China National Highway 318
Costa Rica
- National Route 318
Japan
- Japan National Route 318
United States
- Arkansas Highway 318
- Colorado State Highway 318
- Connecticut Route 318
- Florida:
- * Florida State Road 318
- * County Road 318, several roads in Florida
- Georgia State Route 318
- Indiana State Road 318
- Louisiana Highway 318
- Maryland Route 318
- Minnesota State Highway 318
- Montana Secondary Highway 318
- Nevada State Route 318
- New York:
- * New York State Route 318
- * County Route 318
- Ohio State Route 318
- Pennsylvania Route 318
- Tennessee State Route 318
- Texas:
- * Texas State Highway 318
- * Farm to Market Road 318
- Utah State Route 318
- Virginia State Route 318
- Wyoming Highway 318
- Puerto Rico Highway 318
- U.S. Virgin Islands Highway 318