Pennsylvania Route 347 (PA 347) is an 10-mile (16 km) long state highway located in Lackawanna county in Pennsylvania. The southern terminus is at SR 2020 (Drinker Street) in Dunmore. The northern terminus is at PA 524 in Scott Township.

PA 347 begins at an intersection with SR 2020 (Drinker Street) in Dunmore, heading northeast on two-lane undivided North Blakely Street. The road heads past a few businesses before running through residential areas, widening into a four-lane divided highway as it comes to an interchange with I-81/US 6. Past this, the route becomes Oneill Highway, a five-lane road with a center left-turn lane, and runs through commercial areas, passing to the east of the Penn State Worthington Scranton campus. PA 347 crosses into Throop and splits into a one-way pair following two-lane Cypress Street northbound and two-lane Dunmore Street southbound, with the left lane serving as a left-turn lane. In this area, the road passes homes. The two directions of the route rejoin on two-lane South Valley Avenue and the route continues through residential neighborhoods. PA 347 heads into Olyphant and it passes more residences before crossing a Delaware–Lackawanna Railroad line and turning northwest onto West Lackawanna Avenue;. The road heads through the commercial downtown of Olyphant before crossing the Lackawanna River, at which point it becomes the border between Blakely to the northeast and Dickson City to the southwest. The route heads through residential areas, turning west to fully enter Dickson City. Here, PA 347 turns north onto Dundaff Street and crosses into Blakely, becoming Scott Road. The road heads into wooded areas, coming to an interchange with US 6 Business. The route continues northwest through more woodland with some residences, entering Scott Township. PA 347 becomes Justus Boulevard and heads through rural residential areas, passing through Justus. The road heads north through a mix of farmland and woodland with some homes, running through the community of Millars School. The route intersects PA 632 and continues north through more rural areas a short distance to the east of I-81. PA 347 comes to its northern terminus at an intersection with PA 524, where the road continues north as part of that route.

The entire route is in Lackawanna County.