State Highway 27 (New Zealand)

State Highway 27 (SH 27) is a state highway in the Waikato region of the North Island of New Zealand. It is an important north–south link along the Waihou/Piako valley and forms an important transport route across the mostly dairy farming Matamata-Piako District. SH 27, in conjunction with, is often used as an alternative route to between Auckland and Tauranga, Rotorua and Taupō.

For its entire length, SH 27 is a single carriageway road with one lane in each direction and at-grade intersections and property access. The New Zealand Transport Agency classifies the highway as an arterial route.

Traffic at Kaihere increased by 31%, from an average of 3,965 vehicles a day in 2008, to 5,182 in 2017 and 5,467 in 2019. In 2017 982 (19%) of those were heavy vehicles, mainly trucks.

The road was gravelled and classified as No.19 Main Highway in 1926.