May 21, 2026
America's 250th Anniversary to be celebrated with Lynbrook Freedom Trail event
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!
Homepage
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 (Email)
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
Latest News
Stay up to date on exciting news, events and more with the ParentSquare app!
May 18, 2026
South Middle School eighth graders named Promising Young Writers
We are pleased to share that South Middle School students Gisele Louis and Sienna Mainhart have been recognized as 2026 Promising Young Writers by the National Council of Teachers of English.
April 16, 2026
Lynbrook middle schoolers challenge themselves with nationally recognized math test
For the third consecutive year, Lynbrook Middle School students put their mathematical intellect to the ultimate test by participating in the American Mathematics Competition.
April 15, 2026
South Middle student receives NJHS Outstanding Achievement Award
South Middle School is proud to celebrate one of our National Junior Honor Society students, Christina Allen, who has been selected as a recipient of the NJHS Outstanding Achievement Award!
