About Us                                                                                    

Welcome to St. Mary School!

St. Mary School was founded in 1914 by the School Sisters of Notre Dame.  For over one hundred years, the “charism” of that religious community, which is “unity, and educating in all we do and world vision” continues to permeate who we are. 

Hopefully, you will take a few minutes to visit with us online and discover the great opportunities afforded to our students.  We pride ourselves on educating the whole child with a special emphasis on his or her religious formation in the Catholic faith.

You are always welcome to come and see our wonderful school and consider joining our great school family!

Take a look at the St. Mary School History!

St. Mary School 100 Years in Pictures
St. Mary School History


Lobels Uniform Company has informed us that they will be closing.  All items in the Massapequa store have been reduced and are available for purchase.  However, please keep in mind that we can't guarantee that our uniforms will be the same for 2018-2019 school year.

Saint Mary School Presents
Our Little Caesars Pizza Kit Fundraiser!
Image result for caesars pizza little fundraiser

Little Ca
esar's Pizza Fundraiser deadline has been extended to Friday, January 19th! 

The class with the highest percentage ordered will receive a free dress-down day!
Orders can be submitted online by clicking
  Our Fundraiser ID is 334299

It's Pizza!Pizzal® time! Time for you, your friends, and your family to get your Little Caesars® Pizza Kits! Have them on hand for quick dinners, parties or entertaining! Are you hosting a Super Bowl party? Your order will arrive just in time for Super Bowl Sunday! Buy" several Kits and stock your freezers!  
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Bishop Barres' Letter for
Catholic Schools Week 2018
Click here to Read

Image resultSaint Mary School Welcomes Bishop Barres on Wednesday, January 31st!


All are welcome to join us at 10:00 AM for our show "SMS Honors America With Our Talents"



 The U.S. Congress finally has approved the Tax Cuts and Jobs Act and importantly it includes a major education reform we were seeking – the expansion of 529 college savings accounts to include K-12 public, private and religious tuition. Read More


Bishop Barres Lapchick Dedication Statement can be found here


Fidelis Care is a Catholic-owned healthcare program supported by the US Conference of Catholic Bishops.  Fidelis has been very supportive of our Catholic schools and communities.  If you would like more information on their healthcare program, please click here.

Quick Links                                                                               

Check out our upcoming Catholic Schools Week events on our webpage! 

Click Here

UPCOMING EVENTS                  

News & Events

This is the image for the news article titled Amazon Smile
arrowsAmazon Smile
We are now on Amazon Smile. Go to and search for St. Mary Church & School in East Islip. 0.5% of the purchase will support St. Mary
Read More about Amazon Smile


New York State Senate passes the bill.  
For more information click here for the article