New Hampshire Route 107A

New Hampshire Route 107
Map of eastern New Hampshire with NH 107 highlighted in red
Route information
Maintained by NHDOT
Length:	69.108 mi (111.219 km)
Major junctions
South end:	US 1 in Seabrook
	I‑95 in Seabrook NH 111 / NH 125 in Kingston NH 101 in Raymond US 4 / US 202 / NH 9 in Northwood US 3 / NH 11 in Laconia
North end:	US 3 in Laconia
Location
Counties:	Rockingham, Merrimack, Belknap
Highway system
New Hampshire Highway System Interstate U.S. State Turnpikes ← NH 106 NH 108 →

New Hampshire Route 107 is a 69.108-mile-long (111.219 km) north–south state highway in eastern New Hampshire. It connects Laconia in the Lakes Region with Seabrook on the Atlantic coast. The southern terminus of NH 107 is at U.S. Route 1 in Seabrook near the entrance to Seabrook Station Nuclear Power Plant. The northern terminus is at U.S. Route 3 on the Laconia/Gilford town line.

The highway is signed north-south, but follows a more southeast-to-northwest alignment. Although the route stretches for almost 70 miles (110 km), NH 107 essentially exists as a series of smaller segments connected by short concurrencies with other routes.

NH 107 between US 3 and Leavitt Road in Laconia is part of the Timberman 70.3 Triathlon bicycle course.

NH 107 begins at US 1 in Seabrook, just 1.5 miles (2.4 km) north of the Massachusetts state line, and initially travels nearly due west (signed north). The highway interchanges with Interstate 95 0.2 miles (0.3 km) to the west then continues west into the town of Kensington. NH 107 crosses NH 150 and traverses the southern part of Kensington before continuing into East Kingston where it meets NH 108. NH 108 turns onto NH 107, sharing pavement briefly before splitting off to the south. Continuing west into Kingston, NH 107 intersects the northern terminus of NH 107A (its only "child" route) before meeting NH 111 and NH 125. NH 107 turns north onto NH 111 / NH 125, and the three routes overlap for just over 1 mile (1.6 km), then NH 111 splits off to the east. NH 107 continues along NH 125 for another 0.5 miles (0.8 km) before it splits off on its own again.