Welcome to Holy Trinity Catholic School

Holy Trinity Catholic School is a nurturing, challenging Catholic School within the Diocese of Biloxi.  Located in Bay St. Louis, Mississippi, Holy Trinity offers a quality, Christian experience for children in PreK-3 through Sixth Grade. Holy Trinity not only offers a challenging curriculum, but a well-rounded environment as well.  Special offerings include physical education, computer science, art, music and library.

The school, named after Hurricane Katrina, brought area students together from three local schools, Bay Catholic, St. Clare and St. Rose, to one aptly named Holy Trinity - three in one.

Today, the main school building has been completely renovated and a new Early Childhood Center and Cafeteria has been added.

Please click the Contact Us Tab above and one of our School Administrators will contact you to schedule a personal tour of our wonderful school.