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Mount Sion Secondary

At the forefront of excellence

Welcome to      Mount Sion C.B.S.

Edward Kennedy

"I am both delighted and proud to introduce Mount Sion C.B.S. Secondary School to you through our website and give you an insight into our vibrant and exciting school community.

Mount Sion C.B.S is the first Edmund Rice school in the world and has been educating boys at this historical site for over two hundred years. Edmund Rice was a very compassionate person and we pride ourselves in being a very understanding and caring school where the needs of all learners are catered for."Read More

School Notices

Welcome to our new look website. Our new site is 'responsive', making it easy to navigate on a wide range of web browsers and devices. There’s a range of smaller changes to improve your experience of the site.

A Letter from Chief Medical Officer, Tony Holohan, is available to read in our latest news section.

Click an icon to read more about Our Curriculum

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School Half Zip

We are delighted to announce our new half zip is available to purchase through K Sport. Please Click Here to find out more



Open Night Information Video September 2021

Please enjoy our fantastic Open Night Information Video showcasing all our school has to offer.




Online Payments

To access online payments, Click Here or otherwise online payments can be accessed in our Quick Links tab to the right of the screen


Admission Notice 2022/2023 School Year

Admissions Notice 2022-2023

Admissions Policy

Admissions Policy

Please Click Here to download/print our mainstream school admission application form for the school year 2022/2023.

Please Click Here to download/print our ASD class application form for the school year 2022-2023