Route 8A can refer to the following highways:
Greece EO8a road, remnants of the realigned Athens–Patras road that were not replaced by the A8 motorway
New Zealand New Zealand State Highway 8A
United States Florida State Road 8A Massachusetts Route 8A Nevada State Route 8A (former) County Route 8A (Monmouth County, New Jersey) County Route 8A (Columbia County, New York) Oklahoma State Highway 8A Vermont Route 8A
See also List of highways numbered 8 List of highways numbered A8 8A (disambiguation)