Welcome To Lynbrook High School
Welcome to Lynbrook High School, where student success is our daily focus and striving for excellence our overarching goal. Our blend of strong academics, a passion for the fine and performing arts, and participation in athletics, service activities and independent projects constitute the very heart of all we do. Spend some time visiting our website; then find some time to visit us and see for yourself what makes our home away from home, Lynbrook High School, so special. GO OWLS!!
9 Union Avenue
Lynbrook, NY, 11563
Main Office Telephone: 516-887-0200
Guidance Office Telephone: 516-887-0215
Athletic Office Telephone: 516-887-0236
School Nurse Office Telephone: 516-887-0228
Attendance Telephone: 516-887-0209
Principal: Mr. Matthew Sarosy - 516-887-0204
Assistant Principal: Mr. Salvatore Brescia - 516-887-0200
Assistant Principal: Dr. Sheila Dempsey - 516-887-0200
Nurse: Ms. Diane O'Brien - 516-887-0228
Nurse: Ms. Cathy Hetrick - 516-612-5416
Nurse Fax: 516-612-5423
Student Attendance: Ms. Elizabeth Russo – 516-887-0209
School Year Office Hours: 8:00 AM - 4:00 PM, Monday through Friday
Summer Office Hours: 8:00 AM - 2:00 PM, Monday through Friday
All visitors must have an appointment to meet with staff in any school building. Please call ahead. Thank you!
Important Contact Information:
NYS Child Abuse Hotline: 1-800-342-3720
NYS lÃnea de abuso infantile: 1-800-342-3720
Medicaid Fraud Hotline: 516-612-5200
Lynbrook Senior High School
Welcome to Lynbrook High School, where student success is our daily focus and striving for excellence our overarching goal. Our blend of strong academics, a passion for the fine and performing arts, and participation in athletics, service activities and independent projects constitute the very heart of all we do. Spend some time visiting our website; then find some time to visit us and see for yourself what makes our home away from home, Lynbrook High School, so special. GO OWLS!!
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April 10, 2026
For the third time, Lynbrook has earned the incredible honor of being invited to the New York Stock Exchange by Micheal Pistillo, who works as a Market Maker at GTS. Walking into such an iconic and
April 10, 2026
The Boys Nassau All County Wrestling Awards Banquet was held March 31 at the Crest Hollow County Club.
April 6, 2026
Last month, Lynbrook’s DECA chapter attended the New York State DECA Conference in Rochester. As a first-year chapter, just qualifying for the conference was a significant accomplishment.
April 6, 2026
The Lynbrook Key Club proudly hosted its third and final blood drive of the school year. At this drive alone, they collected 73 pints of blood, helping to save 219 lives. Throughout the entire year,
