Route 127 is a state highway in southwestern Connecticut, running entirely from Bridgeport to Trumbull. It serves as a minor arterial, connecting all four major freeways in the Bridgeport area.

Route 127 begins at an intersection with Route 130 in southeastern Bridgeport and almost immediately intersects I-95. It then heads north, roughly parallel to the Pequonnock River and Route 8, into Trumbull. It intersects Route 8 just north of the Bridgeport-Trumbull town line and continues north, then turns northwest to intersect Route 15 and Route 25 in rapid succession. It then continues northwest to end at an intersection with Route 111 in Trumbull.

White Plains Road was laid out to Pulpit Rock, in present-day Trumbull, in 1705. Route 127 was commissioned in 1932 and originally ran from US 1 to its current northern terminus. At an undetermined time before 1978, the southern terminus was truncated to the Huntington Turnpike (SR 730). It was extended south to US 1 in 1992, then further south to Route 130 in 1995.

The entire route is in Fairfield County.

Location	mi	km	Destinations	Notes
Bridgeport	0.00	0.00	Route 130 (Stratford Avenue)	Southern terminus
	0.10	0.16	I-95 south – New York City	Exit 28 on I-95
	1.40	2.25	US 1 (Boston Avenue)
Trumbull	3.15	5.07	Route 8 north / Route 25 north – Waterbury, New Haven, Trumbull, New York City	Access to Route 25 via Old Town Road
	4.20	6.76	Route 15 north / Merritt Parkway north – New Haven	Exit 50 on Route 15 / Merritt Parkway
	4.87	7.84	Route 25 south – Bridgeport	Exit 5B on Route 25
	6.80	10.94	Route 111 – Bridgeport, Stepney, Long Hill	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

• The USGenWeb Project, Fairfield County