Lynbrook Senior High School
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
Stay up to date on exciting news, events and more with the ParentSquare app!
September 24, 2026
The Lynbrook School District is pleased to announce that three Lynbrook High School seniors have been named Commended Students in the prestigious 2027 National Merit Scholarship Program.
August 28, 2026
The newest Owls joining the Lynbrook High School community got a head start on the school year on Aug. 27 during freshmen orientation.
December 12, 2025
Dear LHS Juniors and Families,The Junior class will be hosting a Semi-Formal event on January 30th. Please see the attached flyer for all the pertinent information regarding this exciting announcem...
