Dunbar is a borough in Fayette County, Pennsylvania, United States.

[5] Dunbar is named for Col. Thomas Dunbar, who commanded an English force at nearby Jumonville and retreated to Philadelphia after Edward Braddock was defeated by the French and Indians.

It is 5 miles (8 km) south of Connellsville via Woodvale Street and U.S. Route 119.

According to the United States Census Bureau, Dunbar has a total area of 0.606638 square miles (1.571185 km2), all land.

29.2% of all households were made up of individuals, and 15.2% had someone living alone who was 65 years of age or older.