Pennsylvania Route 437 (PA 437) is an 11.2-mile (18.0 km) long state highway located in Luzerne county in Pennsylvania. The southern terminus is at PA 940 in White Haven. The northern terminus is at PA 309 in Fairview Township.

PA 437 begins at an intersection with PA 940 in White Haven, heading north on two-lane, undivided Church Street. The route passes homes and some businesses before crossing into Dennison Township and becoming an unnamed road. At this point, the road passes a mix of farmland and woodland. Farther northwest, PA 437 passes through forested mountain areas and passes under a Reading Blue Mountain and Northern Railroad line before entering Wright Township. Here, the road becomes Woodlawn Avenue and passes through a tract of the Lackawanna State Forest, making a turn to the north and running a short distance to the east of the railroad line. In this area, the road passes a few residences as it continues into Fairview Township and winds north past more forests with occasional homes. PA 437 makes a turn to the northwest as it passes over the railroad tracks and comes to its northern terminus at PA 309 in the community of Mountain Top.

The entire route is in Luzerne County.