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!
June 10, 2026
Horizon Editors-in-Chief Jackson Bowler and Sophia Woods, along with advisor Jessica Sanders, had the honor of attending the Press Club of Long Island Media Awards at Fox Hollow on June 4.
May 27, 2026
Lynbrook Schools students, administrators, trustees and community members gathered on May 23 to celebrate America’s 250th anniversary by kicking off the district’s Freedom Trail initiative that featur
May 21, 2026
Please join us on Saturday, May 23 at 10:00 a.m. on the back field of North Middle School for a community-wide celebration of America's 250th Anniversary!
May 13, 2026
Lynbrook High School is proud to announce that junior Shannon Bludoy is the recipient of the Students Building Bridges Award from the Jewish Community Relations Council of Long Island.
