New Hampshire Route 126
Map of eastern New Hampshire with NH 126 highlighted in red
Route information
Maintained by NHDOT
Length	15.265 mi[1] (24.567 km)
Major junctions
South end	NH 9 in Barrington
Major intersections	US 202 in Barrington
North end	NH 28 in Barnstead
Location
Country	United States
State	New Hampshire
Counties	Strafford, Belknap
Highway system
New Hampshire Highway System Interstate US State Turnpikes
← NH 125 → NH 127

New Hampshire Route 126 (abbreviated NH 126) is a 15.265-mile-long (24.567 km) north–south state highway in eastern New Hampshire. It runs between the towns of Barrington and Barnstead.

The southern terminus of NH 126 is in Barrington at New Hampshire Route 9, where NH 126 is named Barnstead Road. The northern terminus is in the town of Barnstead at New Hampshire Route 28.

Major intersections

County	Location[1][2]	mi[1][2]	km	Destinations	Notes
Strafford	Barrington	0.000	0.000	NH 9 (Franklin Pierce Highway) to US 202 – Northwood, Dover	Southern terminus
		1.252	2.015	US 202 east (Washington Street) – Rochester	Southern end of concurrency with US 202
		1.444	2.324	US 202 west (Washington Street) to NH 9 – Northwood	Northern end of concurrency with US 202
	Strafford	5.477	8.814	NH 202A east (Strafford Road) – Rochester	Southern end of concurrency with NH 202A
		5.677	9.136	NH 202A west (Roller Coaster Road) – Northwood	Northern end of concurrency with NH 202A
Belknap	Barnstead	15.265	24.567	NH 28 (Suncook Valley Road) – Pittsfield, Alton	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus