State Road 555 (NM 555) is a state highway in the U.S. state of New Mexico.

NM 555's western terminus is at the end of state maintenance (the end of the paved road) 31.885 miles (51.314 km) west of Raton, and the eastern terminus is at US 64 (I-25 Bus.)

in Raton.

The entire route is in Colfax County.