New Hampshire Route 109

New Hampshire Route 109
Map of eastern New Hampshire with NH 109 highlighted in red
Route information
Maintained by NHDOT
Length	41.029 mi[1] (66.030 km)
Major junctions
South end	SR 109 in Acton, ME
Major intersections	NH 16 in Wakefield NH 25 in Moultonborough
North end	NH 113 in Center Sandwich
Location
Country	United States
State	New Hampshire
Counties	Carroll
Highway system
New Hampshire Highway System Interstate US State Turnpikes
← NH 108 → NH 110

New Hampshire Route 109 (abbreviated NH 109) is a 41.029-mile-long (66.030 km) north–south highway in Carroll County, New Hampshire. It runs southeast from Sandwich to the Maine border.

The northern terminus of NH 109 is at New Hampshire Route 113 in the village of Center Sandwich in the Lakes Region. The eastern terminus is at the Maine state line in the town of Wakefield, where the road continues as Maine State Route 109, heading toward the town of Acton.

NH 109 between Wolfeboro and Moultonborough is locally known as the Governor Wentworth Highway, with signage reading "The Governor John Wentworth Highway", in reference to Sir John Wentworth, 1st Baronet (1737–1820), who served as provincial governor from 1767 to 1775.