Star Junction is an unincorporated community and census-designated place in Perry Township, Fayette County, Pennsylvania, United States.

Star Junction was once a coal mining center, with beehive ovens for coke manufacture and a foundry.

John Kundla (1916-2017), educator and college/professional basketball coach, was born in Star Junction.

[7] Star Junction is in northwestern Fayette County, in the southwest part of Perry Township.

This article about a property in Fayette County, Pennsylvania on the National Register of Historic Places is a stub.