Latest News & Events
8th July 2025
Exam Results Collection & Start Dates and Times for the New School Calendar Year
We are pleased to provide important information regarding the collection of examination results and details about returning to school. Please[…]
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8th July 2025
Exam Results Collection & Start Dates and Times for the New School Calendar Year
We are pleased to provide important information regarding the collection of examination results and details about returning to school. Please[…]
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20th June 2025
Post-16 at St. Mary’s CBGS, Excelling in Teaching and Learning
At St. Mary’s, our sixth form offers an outstanding academic and pastoral environment tailored to equip students for university, high-level[…]
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20th June 2025
SEAG Transfer Test Registration Now Open
SEAG Transfer Test Registration is Now Open – if your son is setting the SEAG transfer exam you can now[…]
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Careers news
30th June 2022
Careers Exploration Week 2022
We held the first ever St Mary’s Careers Exploration Week for Years 8 to 11 pupils from 21st to 27th[…]
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24th March 2022
Easter Creative Technology Camps
Tech Connects – FREE Digital Arts Camps – Easter 2022 Tech Connects, a two year Belfast based project aimed at providing[…]
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9th February 2022
Bring I.T. On – Virtual Careers Fair
Bring I.T. On are holding a virtual careers fair on Thursday 17th February between 2:30pm and 4:30pm. This should be[…]
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8th February 2022
Apprenticeship Week 2022
It’s Apprenticeship Week! All this week, employers, FE colleges, private training employers and universities are offering a range of virtual[…]
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Principal's Welcome
On behalf of our entire school community, I am delighted to welcome you to our school website. I hope you enjoy reading about the exciting opportunities we provide for our pupils. At St. Mary’s, we pride ourselves on our pastoral care, the holistic development of our pupils and the pursuit of academic excellence.
St. Mary’s CBGS is an all-boys voluntary grammar school located on the Glen Road in West Belfast. The school was founded by the Christian Brothers in 1866 and moved to our current site in 1968. The school is inspired by the vision of Edmund Rice, who sought to create schools that provide excellent education and cultivate Gospel-based values. St. Mary’s continues this work today with over 1,180 students aged 11-19.
The ethos of our school is underpinned by our core values of trust, respect and equality. Our teachers recognise the uniqueness of every student, encourage firm friendships among the boys and foster a sense of community. It is within this caring and supportive environment that our students are able to develop their unique talents, becoming enthusiastic and highly motivated learners.
