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  • At Archbishop O'Sullivan Catholic School,

    At Archbishop O'Sullivan Catholic School,

    We strive to provide a distinctively Catholic education that allows each child the opportunities and experiences to grow in their academic capacity and faith formation. Within these experiences we focus on high expectations for all learners that are rooted in our Gospel teachings.  
  • Reporting Student Absence, Late Arrivals or Early Departures

    Reporting Student Absence, Late Arrivals or Early Departures

    Archbishop O'Sullivan Catholic School has a Safe Arrivals Program which parents/guardians use to report their child’s absence in a convenient way.

    Using the Safe Arrivals Program, parents/guardians are able to report daily absences (such as an illness, medical appointment, etc.) and even schedule absences in one of three ways:
    Download the School Messenger App from the Apple App or Google Play store
    Use the website go.schoolmessenger.ca
    Call toll-free to 1-844-445-4383
    These options are available 24 hours per day, 7 days a week, all year.
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School Calendar

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Oct
04
Wed
SCHOOL PHOTO DAY!
9:30 AM - 12:30 PM
Oct
09
Mon
Thanksgiving
All Day
Nov
11
Sat
Remembrance Day
All Day
Feb
19
Mon
Family Day
All Day
Mar
29
Fri
Good Friday
All Day
Apr
01
Mon
Easter Monday
All Day
May
20
Mon
Victoria Day
All Day
Sep
02
Mon
Labour Day
All Day
​
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School News

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  • Golf Tournament cheque presentation.jpg
    Golf Tournament Raises over $20,000 for students

    Pictured above: Director of Education, David DeSantis and Chair of ALCDSB Terry Shea present a cheque to Leila Nasr-Sharifi, Chair of the ALCE...
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  • Multi Year Strategic Plan Year 4 2023-2024.png
    Multi Year Strategic Plan - Year 4
    ​The Algonquin and Lakeshore Catholic District School Board is pleased to announce the launch of the Multi Year Strategic Plan (MYSP)  - Year 4. The...
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  • TRUTH AND RECONCILIATION WEEK.png
    Truth and Reconciliation Week 2023
    ​ From Sept. 25 – 30 ALCDSB schools will be reviewing Truth and Reconciliation Calls to Action and exploring conversations on True History reconciliation...
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  • council of ontario directors of education logo
    CODE Statement on Gender Expression
    ​ CODE Statement Gender Expression

    ​Council of Ontario Directors of Education Statement on Supporting Students and Gender Expression

    The Council of Ontario Directors...
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  • ALCDSB 25th Anniversary logo
    The ALCDSB Celebrates 25 Years!
    ​​ ​

    Celebrate with us as we mark 25 years of making a difference in our Catholic community! The ALCDSB has been dedicated to...
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  • camera smiley.jpg
    School Photo Day!
    We will be having  student photos & class pictures taken on Wednesday, October 4th, 2023
    ​
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    Student Announcements

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