Catholic University School is a private, Catholic school for boys from 3 years to 18 years, and for girls for pre-school.

Under the Trusteeship of the Marist Fathers, CUS is located in the heart of Dublin, on Lower Leeson Street

The Marist Order was founded in 1836 and almost immediately the Marists set up schools which emphasised excellence in learning and provided a context which would develop a pupil's sense of values in accordance with the Gospel. We believe passionately in the value of the education that we provide to the pupils who attend Catholic University School.

The best way to learn is through experience and we believe that CUS offers an experience of a Christian community that will help each pupil that comes to it to become the person that God intended him to be. We believe in providing a balance in pupil's lives by offering opportunities to develop rounded personalities and a sense of responsibility in their personal lives. We do this because we believe in educating the whole person - their minds and bodies but above all their hearts and spirits.

Please enjoy our website. For any further information please contact the school office.


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Dec 17th: Some photos from tonight’s Carol Service at St Ann’s Church Dawson Street. The choir were excellent and a credit to the hard work and dedication of their music teacher, Hayley O’Sullivan.

Apologies for late notice but due to Carol Service tomorrow evening Monday 17th Dec there will be no first year rugby training in Clontarf after school.

Sat 15: First and Second year training cancelled this morning and Junior B match away to Castleknock.

Our Students who are in Ireland Cricket Squads - left to right Niall Cox (U 13s), Andrew Tonge (U 15s), Neil Rock (U 19s + Irish Wolves), Nathan Maguire (U 17s) and Mark Tonge (U 15s)

Some images of the Senior 2nd match vs @HsdRugby on the impressive new 4G at the High School. Good game that was narrowly won by The High School.

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If you would like to make an application for admission please click on the link below for more information.


If you would like to know more about C.U.S. and the commonly asked questions please click the link below for more information.


School Executive



The Principal of C.U.S. is Thomas J Byrne and the Vice Principal is Patricia Roberts Byrne.

For any further information please contact the school office.