List of highways numbered 23A

The following highways are numbered 23A:

United States

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