10, also known as South Scranton Catholic High School, is a historic school building located at Scranton, Lackawanna County, Pennsylvania.

It was built about 1896, and is a two-story, I-shaped brick and sandstone building in a Late Victorian style.

It features a central three-story entrance tower with a hipped roof.

The public school was closed in 1941, and subsequently acquired by the Roman Catholic Diocese of Scranton for use as a consolidated Catholic high school.

It was renamed in 1973, as Bishop Klonowski High School, and closed in 1982.