Route 705, or Highway 705, may refer to:
Canada New Brunswick Route 705 Saskatchewan Highway 705
Costa Rica National Route 705
India National Highway 705
United Kingdom A705 road (Great Britain)
United States Interstate 705 Florida State Road 705 Georgia State Route 705 (former) Kentucky Route 705 Louisiana Highway 705 Maryland Route 705 Nevada State Route 705 County Route 705 (Camden County, New Jersey) County Route 705 (Cumberland County, New Jersey) County Route 705 (Gloucester County, New Jersey) County Route 705 (Hudson County, New Jersey) County Route 705 (Passaic County, New Jersey) North Carolina Highway 705 Ohio State Route 705 Farm to Market Road 705 Virginia State Route 705 West Virginia Route 705
Territories Puerto Rico Highway 705