Pennsylvania Route 743 (PA 743) is a north–south state route located in central Pennsylvania. The southern terminus is at PA 441 in Marietta. The northern terminus is at U.S. Route 22 (US 22) near the East Hanover Township hamlet of Grantville though some signage has it continue north past Interstate 81 (I-81) to PA 443. The route runs north through Lancaster County, passing through Maytown before reaching Elizabethtown. Here, the route has concurrencies with PA 230 and PA 241 and comes to an interchange with the PA 283 freeway. PA 743 continues into Dauphin County and crosses PA 341 before reaching Hershey. In Hershey, the route follows Cocoa Avenue between US 322 and US 422, the latter which is known as Chocolate Avenue. PA 743 follows Park Avenue north past Hersheypark and Hersheypark D