Vermont Route 155 (VT 155) is a 10.377-mile-long (16.700 km) north–south state highway in central Vermont, United States. It runs from VT 100 in Weston in the south to VT 103 in East Wallingford in the north. Much of the highway goes through the Green Mountain National Forest. VT 155 was part of VT 8 until May 1961, when the section between Weston and Wallingford was re-designated.