Welcome to Sligo Grammar School
It is my privilege as Headmaster to write this introduction for our school website.
The keystones to Sligo Grammar Schools success include respect, trust, co-operation, participation, consultation, collaboration and teamwork. Our enthusiastic and dedicated staff place great emphasis on a holistic education. Such efforts are channeled so that our pupils develop the characteristics of good reliable citizens, fit to take their place in society. Together with a fine tradition of sport and community involvement, the school offers a wide range of activities to ensure the personal and social development of the whole child.
Our Mission Statement below explains more formally what we aspire to achieve…
Announcements
First Year Applications can be completed on-line. See applications under the Admissions menu.
Or click here
Sligo Grammar School Parent Association Event
Closed Weekend for Boarders
November 29th – December 1st
Staff Training Day
Monday 1st December 2025
No Class for Students
3rd Year Parent Teacher Meeting
Tuesday 25 November 2025
15.15 – 17.45
2nd Year Parent Teacher Meeting
Thursday 4th December
15.15 – 17.45
School Exams
1st, 2nd & 5th Year Exams
Sligo Grammar School
Christmas Carol Service
Wednesday 10th December 2025
in Calry Parish Church at 11.30 am
All Welcome
Latest News

Diarmaid O’Connell scores in Ireland U-20s
Congratulations to Diarmaid O’Connell, captain of Sligo Grammar School, SCT 2024, who played a full game in the back row

SGS Swimming News
Sligo Grammar School was represented recently at the Connacht Schools Swimming Gala in Longford last Sunday. 10 competitive swimmers took

SGS represented in the Athletic Ireland National Finals
Athletic Ireland. Alastair Sheehan represented the Sligo Grammar School in the 123.ie All-Ireland Schools Combined Events Championships in the national

Junior Cert Results 2025
Celebrating Junior Cycle 2025 Results Congratulations to our students on an amazing set of well deserved Junior Cycle results.
Sports
Boarding
Clubs & Societies