Archbishop O'Hara is a Lasallian high school.

"Lasallian Schools strive …

"The Lasallian School is a Christian school which shares in the teaching mission of the Catholic Church. Among its chief concerns are the religious formation, academic preparation, and cultural development of its students...The Lasallian school is characterized by the importance it gives to the education of the working class and the poor...It gives priority to the Christian instruction and formation of its students. It commits itself to academic excellence in response to the needs, goals and abilities of the students it attracts...De La Salle advises his teachers to pray for the ability to touch the hearts of the students. This gift unifies the Lasallian association in the creation of a disciplined structure that challenges young persons to accept the responsibilities of their vocations as students. Teachers, by their love and care, encourage students to grow in leadership and personal responsibility."