About St Louis

Welcome to St. Louis Grammar School
A Legacy of Excellence, A Future of Innovation

Since our founding in 1922, St. Louis Grammar School has been a cornerstone of the Mourne area, providing over a century of co-educational excellence. As an inclusive, family-oriented Catholic school, we continue to grow from strength to strength, celebrating students who excel in external examinations and across all areas of school life.

Our Vision
Empowering Every Learner

We are committed to providing a high standard of education in every sense of the word. Our curriculum is wide, varied, and designed to meet the needs of all—from those who are gifted and talented to those requiring additional support. We operate on the firm belief that no child is left behind. Our goal is to ensure every student is happy, learning, and succeeding in an environment that is:

Relevant and Rewarding
Empowering and Enjoyable
Nurturing of Academic and Personal Potential

A Caring, Values-Based Community

Our motto, ‘Ut Sint Unum’ (‘that they all may be one’), inspires us to seek personal wholeness and peace. While we are a Catholic school, we welcome students of all or no religious traditions who support our values. Our pastoral care emphasizes self-esteem and mutual respect, creating a disciplined yet happy environment where students live out their faith by supporting local and international charities.

Looking to the Future
World-Class Facilities

The next chapter of St. Louis is unfolding. We are immensely excited about the progress of our new school building. Following the planning application submission in September 2025, design development is moving at a pace. We are proud to be preparing world-class facilities that will serve our community for generations to come.

Partnership with Parents

We believe that education is a partnership. We deeply value the role of our parents and encourage active participation through:

School Masses and Sporting Events
Music and Creative Showcases
Fundraising and Policy Reviews

Preparing for the 21st Century

At St. Louis, the uniqueness of each individual is recognized. We prepare our students to face the world as confident, articulate, and mature young adults, equipped with the skills and attributes required to meet the challenges of the modern world.