skip to main content

Seneca Middle School

850 Main Street
Holbrook, NY 11741
Principal: Gemma M. Salvia
Assistant Principal: Denise Dolan
Assistant Principal: William Holl
Phone: (631) 471-1850


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

Seneca Slideshow

Suggested Supply List

Just a reminder: This is a suggested list. Please determine how you think your child will best be able to carry their books during the day (AM/PM binder; one Trapper Keeper; multiple notebooks, etc.) You know your child best. Please keep this in mind when shopping for supplies. If there are any questions, please do not hesitate to call the office at 631-471-1850.

Summer Reading Brochure 2018-2019

Grade 6
Grade 7
Grade 8
Summer Reading Story Map Nonfiction
Summer Reading Story Map Fiction


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

Transitioning to Middle School Information

Upcoming Events

DATE CHANGE - Thursday, August 30 - Grade 6 Orientation - Auditorium
8:30am-10:00am - Last name A-F
10:15am - 11:45am - Last name G-N
12:00pm-1:30pm - Last name O-Z

Please bring your school supplies at Orientation and only arrive during your scheduled time. Carpool if you can since parking will be limited. Make-up day - August 31 - 9:00am

Monday, September 3 - Labor Day
Tuesday, September 4 - First day for teachers
Wednesday, September 5 - First day for students
Monday, September 10-11 - School Closed - Rosh Hashanah
Thursday, September 13 - Grade 6 Open School Night - 7pm
Monday, September 17 - Grade 7 Open School Night - 5pm-6:45pm
Monday, September 17 - Grade 8 Open School Night - 7:15pm-8:45pm
Wednesday, September 19 - School Closed - Yom Kippur

Students Who Make a Difference at Seneca

Students image

Seneca's Newspaper is here!


Click here for information!



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.




Follow us on Twitter @SachemSenecaMS
Like us on Facebook @ Seneca Middle School - authorized
Follow us on Instagram @ seneca_ms


In the News

No Current News Items