Massachusetts Route 108

New Hampshire Route 108
Map of southeastern New Hampshire and northeastern Massachusetts with NH 108 highlighted in solid red and with MA 108 highlighted in dotted red
Route information
Maintained by NHDOT
Length:	42.430 mi (68.284 km)
Major junctions
South end:	Route 110 in Haverhill, MA
	NH 101 in Exeter US 4 in Durham Spaulding Turnpike / NH 16 in Dover NH 4 / NH 9 in Dover
North end:	NH 125 / NH 202A in Rochester
Location
Counties:	Essex (MA), Rockingham, Strafford
Highway system
New Hampshire Highway System Interstate U.S. State Turnpikes ← NH 107A NH 109 → ← Route 107 MA Route 109 →

New Hampshire Route 108 is a 42.430-mile-long (68.284 km) north–south state highway in Rockingham and Strafford counties in southeastern New Hampshire. The southern terminus of NH 108 is at the Massachusetts state line in Plaistow. The northern terminus is at an intersection with New Hampshire Route 125 and New Hampshire Route 202A in downtown Rochester.

At its southern end, NH 108 connects to Massachusetts Route 108, a very short state route which continues south for 0.91 miles (1.46 km) to Massachusetts Route 110 in Haverhill.

NH 108 is notable in being one of two routes (the other being New Hampshire Route 9) to intersect both U.S. Route 4 and New Hampshire Route 4 (a rare case of two completely separate routes in one state having the same number).