The following highways are numbered 505:
Canada Alberta Highway 505 Manitoba Provincial Road 505 New Brunswick Route 505 Ontario Highway 505 (former)
Costa Rica National Route 505
Israel Route 505 (Israel)
Japan Japan National Route 505
United Kingdom A505 road
United States Interstate 505 (California) Interstate 505 (Oregon; never built) Arizona State Route 505 Florida State Road 505 Louisiana Highway 505 Maryland Route 505 County Route 505 (New Jersey) New Mexico State Road 505 Ohio State Route 505 Pennsylvania Route 505 Ranch to Market Road 505 Washington State Route 505 Territories Puerto Rico Highway 505