Welcome To South Middle School
Thank you for visiting the Lynbrook South Middle School Home Page. Please use the links in the navigation to find important information related to students, staff and parents.
This site will be updated regularly so please check back often.
333 Union Avenue
Lynbrook, NY, 11563
Main Office Telephone: 516-887-0266
School Nurse Telephone: 516-887-0273
Principal: Mrs. Kaitlin GaNun
Nurse: Ms. Holly Wilson
Secretary: Ms. Julia Giordano
Secretary: Ms. Malgorzata Los
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 DO 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 19, 2025
New friends were made at Lynbrook North and South middle schools as students promoted unity and stood against social isolation during Start With Hello Week from Sept. 15-19.
View the full calendar to see all the exciting events we have happening in the next few weeks and months!
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