List of highways numbered 23A

The following highways are numbered 23A:

United States

 * Maryland Route 23A (former)
 * N SPUR 23A.svg Nebraska Spur 23A
 * Monmouth County Route 23A NJ.svg County Route 23A (Monmouth County, New Jersey)
 * NY-23A.svg New York State Route 23A
 * Rockland County Route 23A NY.svg County Route 23A (Rockland County, New York)
 * Schuyler County Route 23A NY.svg County Route 23A (Schuyler County, New York)