North Carolina Highway 306 is a state highway in the U.S. state of North Carolina that runs north–south in the eastern part of the state.

The highway's southern terminus is in Craven County, near Havelock. It follows Ferry Road north from its intersection with NC 101 for about five miles before it encounters the Neuse River. On the banks of the river is the dock for a free ferry, which the highway utilizes to cross the river. Many locals use this ferry to commute to and from the Marine Corps Air Station Cherry Point in Havelock, which makes this particular crossing among the busiest in the state.

Once across the river, which serves as the county line for Pamlico County, the highway goes through the village of Minnesott Beach. The route goes due north through Pamlico County on the east bank of the river. It crosses NC 55 about halfway through the county before crossing into Beaufort County. Many from southern Craven and Carteret counties use this route to get to the popular destination of Oriental.

Once in Beaufort County, a brief concurrency begins a few miles into the county, with NC 33. NC 306 then turns left, skirting Aurora and bisecting the large PCS Phosphate Facilities. After going through PCS Phosphate, the road crosses the Pamlico River, again by a free ferry used by many commuters to get to the phosphate plant. On the other side of the river, the route immediately and abruptly comes to its northern terminus at NC 92 and NC 99, still in Beaufort County.