Trafford is a borough in Allegheny and Westmoreland counties in the U.S. state of Pennsylvania.

It was incorporated in 1904 from the northernmost corner of North Huntingdon Township, and was named by George Westinghouse for Trafford near Manchester, England.

Westinghouse purchased the land in 1902, and the Trafford Foundry began operations on October 3, 1903.

[5] According to the United States Census Bureau, the borough has a total area of 1.4 square miles (3.6 km2), all land.

38.0% of all households were made up of individuals, and 20.8% had someone living alone who was 65 years of age or older.