State Highway 86 is a New Zealand State Highway connecting the city of Dunedin's airport to State Highway 1 and the city itself. It is one of the more recent highways, gazetted in 2003. It is a two-lane single carriageway.
The road begins at an intersection with SH 1 in the satellite town of Allanton and proceeds in a north-northwesterly direction over the Taieri Plains. After about 1.5 km the road curves to the west-southwest and proceeds for about 3.5 km before veering to the NNW and then to the SSW again at Momona before terminating at Dunedin airport.