Pennsylvania Route 662 is a 26.17-mile-long (42.12 km) state highway located in Berks County in eastern Pennsylvania. Its southern terminus is at U.S. Route 422 in Douglassville and its northern terminus is at PA 61 in Shoemakersville. The route is a two-lane undivided road its entire length and passes through rural areas. PA 662 heads north from Douglassville, intersecting PA 562 in Yellow House before becoming concurrent with PA 73 northwest through Oley. From here, PA 662 continues north and meets PA 12 in Pricetown before passing through the borough of Fleetwood and coming to a junction with US 222 in Moselem Springs. After this, the route continues west and intersects PA 143 before reaching its terminus at PA 61.

Berks County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the county's population was 428,849. The county seat is Reading, the fourth-most populous city in the state. The county is part of the South Central Pennsylvania region of the state.