New Hampshire Route 156 (NH 156) is a 6.424-mile-long (10.338 km) secondary north–south highway in Rockingham County in southeastern New Hampshire.

The southern terminus of NH 156 is at New Hampshire Route 27 and New Hampshire Route 107 on the east side of Raymond.

The short highway travels north in a generally northeastern direction.

It passes by two cemeteries and Pawtuckaway Lake before reaching its northern terminus at an intersection with NH 152 in Nottingham.

The entire route is in Rockingham County.