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Seneca Middle School

850 Main Street
Holbrook, NY 11741
Principal: Gemma M. Salvia
Assistant Principal: Kevin Miller
Assistant Principal: Georgia Afxendiou
Phone: (631) 471-1850


Be Kind. Be Honest. Be Humble. Be your Best. 

 September 2021- Letter to Parents- Open School Night Information

Important Dates

Thursday, September 23 – Open School Night Grade 6 – 7:00pm

Thursday, September 30 – Open School Night Grades 7/8 – 7:00pm

Wednesday October 13th - Picture Retake Day- Periods 1st-3rd only

Students Who Make A Difference

September Club Calendar

   Club Information

 Student Handbook 

  Important Phone Numbers and Information 

Seneca's Newspaper is here!


NJHS Extra Curricula Activity Form


Seneca Middle School is participating in Stop 'n' Shop A+ Rewards to fundraise for our Cultural Arts Programs and In School Activities. Click here to see a flyer with details on signing up



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!



Mission Statement

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.




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