Seneca Middle School
850 Main Street
Holbrook, NY 11741
Principal: Gemma M. Salvia
Assistant Principal: Heather Stumpf
Assistant Principal: Georgia Afxendiou
Phone: (631) 471-1850
Be Kind. Be Honest. Be Humble. Be your Best.
New Bell Schedule - Please Note: School begins at 7:50am and ends at 2:40pm
Seneca Clubs 2022-2023 - View the list of clubs for this school year
Join the 2022-2023 Seneca MS PTA via the Membership Form
Students who Make a Difference 2023
Students of the Month
Students of the Month for April and their nominating teachers
Grade 6 – Ewelina Morelli
Grade 7 – Sarah Stoltenborg
Grade 8 – Olivia Eger
Seneca's Newspaper is here!
Just a reminder, students will not be released to anyone if the person is not listed on the emergency card.
If changes need to be made on the card, please send in a revised one in to the main office. Thank you!
The Seneca Middle School community will foster the intellectual, emotional, and physical growth of every child
by developing a positive self-image, a strong desire for learning, and a sense of respect for self and others.
We will accomplish this by providing a challenging curriculum in a safe and supportive atmosphere,
as our children mature into productive citizens.
Follow us on Twitter @SachemSenecaMS
Like us on Facebook @ Seneca Middle School - authorized
Follow us on Instagram @ seneca_ms