The following highways are numbered 418:
Canada Manitoba Provincial Road 418 Newfoundland and Labrador Route 418 Ontario Highway 418
Japan Route 418 (Japan)
Norway
Thailand
United Kingdom A418 road Leighton Buzzard - Aylesbury
United States Florida: Florida State Road 418 Florida State Road 418 (former) Louisiana Highway 418 Maryland Route 418 New Mexico State Road 418 New York State Route 418 Pennsylvania Route 418 Puerto Rico Highway 418 South Carolina Highway 418 Tennessee State Route 418