The following highways are numbered 299:
Canada Quebec Route 299
Japan Japan National Route 299
United States U.S. Route 299 (former) Alabama State Route 299 Arkansas Highway 299 California State Route 299 Delaware Route 299 Georgia State Route 299 Iowa Highway 299 (former) Kentucky Route 299 Maryland Route 299 Minnesota State Highway 299 New York State Route 299 County Route 299 (Erie County, New York) Ohio State Route 299 (former) Oklahoma State Highway 299 (former) Pennsylvania Route 299 Tennessee State Route 299 Texas State Highway 299 (former) Texas State Highway Spur 299 Farm to Market Road 299 (proposed) Utah State Route 299 Virginia State Route 299