Route 32 is a 54.88-mile (88.32 km) primary north–south state highway in the U.S. state of Connecticut, beginning in New London and continuing via Willimantic to the Massachusetts state line, where it continues as Route 32 in that state.

Route 32 begins near Interstate 95 (about 0.5-mile (0.80 km) south of the road crossing as a continuation of Water Street). It is a freeway near the interchange with I-95, then becomes an expressway with at-grade intersections up to SR 693, a short freeway that provides access to I-395. It then becomes a mostly two-lane surface road with the exception of the overlap with Route 2 in Norwich.

It goes through the following towns: New London, Waterford, Montville, Norwich, Franklin, Lebanon (0.11 miles (0.18 km) only), Windham, Mansfield, Willington, Tolland (0.10 miles (0.16 km) only), Ellington, and Stafford. From New London to Norwich, Route 32 follows along the west bank of the Thames River.

Route 32 between Norwich and New London was laid out in 1670 and remained little more than an Indian trail for more than a century . The number dates from when the route was part of New England Interstate Route 32 from 1922–1932. In 1932, Connecticut stopped using the New England route system, but Route 32 kept its number as a state highway. The north and south ends were also realigned in 1932. In the south, the original New England Route 32 ran along present day Route 12 from Groton to Norwich. The modern alignment from New London to Norwich used to be part of New England Route 12. (Route 12 and Route 32 have basically swapped places south of Norwich). In the north, the original New England Route 32 used present day Route 19 from Stafford to the Massachusetts state line. The modern alignment in Stafford was known as State Highway 334 in the 1920s before being reassigned to Route 32.

County	Location	mi	km	Destinations	Notes
New London	New London	0.00	0.00	Crystal Ave (SSR 437 south)	Continuation south
		0.14– 0.94	0.23– 1.51	I-95 / US 1 – Groton, Providence, New Haven	Exits 84S-N on I-95
	Waterford	4.04	6.50	To I-395 north – Norwich	Interchange; northbound exit and southbound entrance; access via SR 693
	Montville	5.58	8.98	Route 163 north – Oakdale
		8.93	14.37	Route 2A – Norwich, Poquetanuck	Exit 5 on Route 2A
	Norwich	12.15	19.55	Route 82 west – Montville
		12.33	19.84	Route 2 east	Southern terminus of Route 2 overlap
		13.70	22.05	Route 169 north – Taftville
		14.85	23.90	I-395 / Route 2A east – New Haven, Providence	No northbound access to I-395 north; western terminus of Route 2A; exits 13A-B on I-395
		16.21	26.09	Route 2 west – Hartford	Northern terminus of Route 2 overlap
	Franklin	17.05	27.44	Route 87 north – Lebanon
		22.16	35.66	Route 207 – Baltic, Lebanon
Windham	Windham	25.46	40.97	Route 203 north – Windham
		28.50	45.87	South Street (SR 661)
		29.00	46.67	Route 289 south – Lebanon
		29.23	47.04	Air Line State Park Trail – Lebanon, Colchester
		29.27	47.11	Route 66 east – North Windham	Southern terminus of Route 66 overlap
		30.02	48.31	Route 66 west – Columbia	Northern terminus of Route 66 overlap
		30.89	49.71	US 6 – Columbia, North Windham
Tolland	Mansfield	32.29	51.97	Route 31 north – Coventry
		35.62	57.32	Route 275 – Coventry, Storrs
		37.50	60.35	US 44 – Ashford, Bolton
		39.79	64.04	Route 195 – Tolland, Storrs
	Willington	43.16	69.46	Route 74 – Tolland, Willington
		44.64	71.84	I-84 – Boston, Hartford	Exit 70 on I-84; former Route 15
	Stafford	48.85	78.62	Route 190 east – Union	Southern terminus of Route 190 overlap
		49.08	78.99	Route 140 west – Ellington
		49.88	80.27	Route 190 west – Somers	Northern terminus of Route 190 overlap
		50.78	81.72	Route 319 – Stafford, West Stafford
		54.88	88.32	Route 32 north – Monson, Palmer	Massachusetts state line
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

• New England Interstate Route 32

Media related to Connecticut Route 32 at Wikimedia Commons

• Connecticut Roads