Elk County Catholic High School is a private, Roman Catholic high school in St. Marys, Pennsylvania, United States.

It is located in the Roman Catholic Diocese of Erie.

[2][3][4] Elk County Catholic High School was established in 1962 by the Catholic Diocese of Erie, Pennsylvania.

The predecessor to ECCHS was the Central Catholic High School, located nearby on Church and Center Streets.

The school's colors are maroon and gold, and the mascot is the Crusader.