Koppel is a borough in northern Beaver County, Pennsylvania, United States.

The next year, Orenstein & Koppel donated land to the new borough for school and municipal buildings.

Other manufacturing companies had a presence in Koppel—the Pressed Steel Car Co. from 1919 to 1937 and Babcock & Wilcox during the 1950s.

Pennsylvania Route 18 (Big Beaver Boulevard) follows the western border of the borough, leading south 6 miles (10 km) to Beaver Falls and north 14 miles (23 km) to New Castle.

Pennsylvania Route 351 crosses Route 18 and runs through the center of Koppel, leading northeast 3 miles (5 km) to Ellwood City and west 2.5 miles (4.0 km) to Interstate 376 at the Pennsylvania Turnpike.

Children in Koppel are served by the Big Beaver Falls Area School District.