New York State Route 31A (disambiguation)

New York State Route 31A is an east–west state highway in Orleans and Monroe Counties in New York, United States, that was established in the mid-1930s.

New York State Route 31A may also refer to:
 * New York State Route 31A (Onondaga County), assigned from the mid-1920s to 1930
 * New York State Route 31A (western Niagara County), assigned from the late 1920s to the mid-1930s