Mount Sackville Secondary School
01 821 3317
01 821 4061
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Cluny

School Year Opening Mass
19-Sep-2025

School Year Opening Mass

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Cluny Ethos
04-Feb-2025

Cluny Ethos

Mount Sackville is a Christian community based on Catholic values, providing a secure, welcoming and ordered environment where individuals are encouraged
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All Souls
09-Nov-2023

All Souls' Stroll

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Cluny Day - Comóradh agus Ceiliúradh
13-May-2022

Cluny Day - Comóradh agus Ceiliúradh

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160 Years Anniversary
10-Dec-2020

160 Years Anniversary

Mount Sackville Secondary School celebrated a momentous occasion - 160 years of providing Cluny education.  To mark this special milestone, we hosted
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Deputy Principal
23-Oct-2018

Deputy Principal's Welcome

I am delighted to extend a warm welcome to the Mount Sackville website. In line with our Cluny heritage and tradition we continuously strive to ensure
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calendar
Mar
19 2026
5th Year Trip Information Meeting
Mar
20 2026
Parents Lunch
Mar
21 2026
Incoming 1st Year Information Day
Mar
24 2026
TY PTM
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Contact
Mount Sackville Secondary School,
Sisters of St. Joseph of Cluny,
Chapelizod,
Dublin 20,
D20 WP68
01 821 3317
01 821 4061
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