Presbyterian Christian School (PCS) is a private Christian school in Hattiesburg, Mississippi. It serves preschool through grade 12. Grades K5-6 attend one campus, while 7-12 attend an adjacent campus.

The historian Joseph Crespino has noted that, unlike many other private schools in Mississippi, PCS was established after school desegregation began and enrolled minority students within a few years of its founding.

However Crespino's theory is still debated. At the time the school was founded large amounts of African-American students had recently begun to fill Hattiesburg public schools and many parents, outraged at this, began to enroll their students at the newly founded PCS. This reasoning for placing children at PCS still stands today. Many parents also enroll their children at PCS so they do not have to attend the local public schools, which are known to be of lesser quality due to low funding along with gang and drug activity.

The schools current minority attendance remains low, with a C rating in diversity. In 2018 a lawsuit was brought upon the school for dismissing a senior student for a drug arrest over spring break 2015. In 2017, a student was known as JSW was dismissed for sexual harassment, a lawsuit was latter brought upon the school for wrongful expulsion. The father of the child, claimed that is was all a “stupid joke”. The school is known to have a ‘no nonsense’ policy on drug use and any type of action that in anyway conflicts with its Christian values. PCS is strongly Conservative and Christian on its teaching and disciplinary levels.