Frankfort Springs is a borough in southern Beaver County, Pennsylvania, United States.

There were 51 housing units at an average density of 204.1 per square mile (78.8/km2).

29.2% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older.

There were 12.8% of families and 21.5% of the population living below the poverty line, including 28.0% of under eighteens and 15.4% of those over 64.

Children in Frankfort Springs are served by the South Side Area School District.