List of highways numbered 20B

The following highways are numbered 20B:

New Zealand

 * State Highway 20B NZ.svg New Zealand State Highway 20B

United States

 * N-20B 1926.svg Nebraska Highway 20B (former)
 * NY-20B (1927).svg New York State Route 20B (former)
 * CR 20B jct.svg County Route 20B (Greene County, New York)