Langhorne Borough is a borough in Bucks County, Pennsylvania, United States. The population was 1,622 at the 2010 census.
The mailing address "Langhorne" is used for Langhorne Borough but it is also used broadly to describe the majority of surrounding Middletown Township, which for the most part uses Langhorne's ZIP code of 19047. Sesame Place, while physically located in surrounding Middletown Township, has Langhorne as its mailing address. Langhorne also includes the northeastern part of Lower Southampton Township, which uses the ZIP code 19053.
Langhorne Borough is approximately six miles west of the Delaware River.
Langhorne Manor is a separate borough that borders Langhorne Borough proper to the south.
Langhorne began in the 17th century when Jack Alexander built his house in the area. The road from Bristol grew into a very important transportation center between Trenton and Philadelphia in the later 18th century and 19th century. Langhorne eventually became the stagecoach transportation hub of Bucks County, transporting people between Trenton and Philadelphia and was then known as Four Lanes End, later known as Richardsons Corner.