The following highways are numbered 13A:
Canada Alberta Highway 13A
United States County Road 13A (St. Johns County, Florida) Nebraska Spur 13A County Route 13A (Monmouth County, New Jersey) New York State Route 13A County Route 13A (Allegany County, New York) County Route 13A (Greene County, New York) County Route 13A (Suffolk County, New York) Secondary State Highway 13A (Washington) (former)
See also List of highways numbered 13 List of A13 roads