Our History

Front of Seton LaSalle Catholic High SchoolSeton LaSalle Catholic High School, located in Mt. Lebanon, Pennsylvania, was formed in 1979 by the merger of two outstanding Pittsburgh institutions: the all-boys South Hills Catholic High School and the all-girls Elizabeth Seton High School.
 

As one of the first coeducational diocesan high schools in Pittsburgh, Seton LaSalle was originally established to serve the parishes of the South Hills. However, in the decades that followed, the school has attracted a growing community with some of the brightest and most talented students in the region. 

Blessed with a long tradition of excellence, today we are one of the most diverse and inclusive student bodies in the entire region. Our students enjoy the energy and enthusiasm of our community, and our commitment to shared success that makes an education at Seton LaSalle a life-building experience unlike any other.