New Hampshire Route 115

New Hampshire Route 115
Map of Coos County in northern New Hampshire with NH 115 highlighted in red
Route information
Maintained by NHDOT
Length:	9.697 mi (15.606 km)
Major junctions
South end:	US 3 in Carroll
North end:	US 2 in Jefferson
Location
Counties:	Coos
Highway system
New Hampshire Highway System Interstate U.S. State Turnpikes ← NH 114A NH 115A → ← NH 115A NH 116 →

New Hampshire Route 115 (abbreviated NH 115) is a 9.697-mile-long (15.606 km) north–south state highway in Coos County in northern New Hampshire. The southern terminus of NH 115 is at U.S. Route 3 in Carroll north of Twin Mountain. The northern terminus is at the intersection with U.S. Route 2 in Jefferson. NH 115 is also known as Owl's Head Highway, named after an adjacent mountain prominence.

NH 115 intersects New Hampshire Route 115A (Cherry Mountain Road) and New Hampshire Route 115B (Israel's River Road), where it crosses the Israel River. Several hiking trails can be accessed from NH 115 including the Cohos Trail and two trails up Cherry Mountain, each with designated parking areas. The Agnew State Forest is accessible to the south, via Cherry Mountain Road.

The speed limit varies from 40 miles per hour in Twin Mountain to 55 mph (89 km/h) over the remainder. Much of the road skirts the White Mountain National Forest or other wildlife conservation land.