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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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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


2021/2022 Book Lists

Click Here to follow the link for our book lists for the upcoming academic year.


2021/2022 School Calendar and Return to School Schedule August 2021

Click here to view the upcoming school calendar for August 2021


VSware Parent App

VS-Mail is a brand new method of communication through VSware. It allows anyone with a VSware account including staff, contacts (parents etc.) or students to send and receive messages to and from their VSware accounts. 


Mount Sion CBS will be communicating predominantly through the Parent App and VS-Mail. We want all parents/guardians to download the new app and the documents, links and videos below will help guide you:




Click here for more information on how to download the Parent App

Click here on how to turn on notifications for VS-Mail