New Hampshire Route 115B

Infobox NH Route
type=NH
route=115B
alternate_name=


length_mi=1.5
length_round=1
length_ref=Fact|date=February 2007
formed=
dir1=West
from=
junction=
dir2=East
to=
cities=
previous_type=NH
previous_route=115A
next_type=NH
next_route=116

New Hampshire Route 115B (abbreviated NH 115B) is the designation for an east-west connector between New Hampshire Route 115 and New Hampshire Route 115A, along the Israel River in Jefferson. NH 115B was part of NH 115 prior to the southerly relocation and improvement of that route.

NH 115B, also known as Israel's River Road, is approximately 1.5 miles long and continues across NH 115 as Valley Road, once the main route from Jefferson to Randolph and beyond. An RV campsite is located along this road.