Stephen Gaynor School
90th St. entrance
Address
148 West 90th Street New York , New York 10024 United States
Coordinates	40°47′22.9″N 73°58′22.9″W / 40.789694°N 73.973028°W / 40.789694; -73.973028
Information
Type	Independent private school, day, special education
Religious affiliation(s)	Nonsectarian
Established	1962 (1962)
Founder	Miriam Michael and Yvette Siegel-Herzog
NCES School ID	00942697[1]
Head of school	Scott Gaynor
Teaching staff	129.5 (on an FTE basis)[1]
Grades	Pre-K, K–8
Gender	Co-educational
Enrollment	387[1]
Student to teacher ratio	3.0[1]
Campus	Urban
Color(s)	Green and White
Mascot	The Alligator
Website	stephengaynor.org

The Stephen Gaynor School is an independent private, special education school in Manhattan, New York, United States, associated with New York Interschool. The school was started with five students in 1962.^[2] Today, approximately 380 students ages three to fourteen with a range of language-based learning differences attend the school. ^[3] Stephen Gaynor School is a member of the New York State Association of Independent Schools NYSAIS.^[4]

The school uses Orton-Gillingham instruction, a multi-sensory teaching approach commonly associated with dyslexia, and is accredited by the Academy of Orton-Gillingham Practitioners and Educators.^[5]

Since 2007, Stephen Gaynor School has partnered with local public schools P.S. 84 and P.S. 166 to offer free after-school help for students who are behind in reading. In the 2023-2024 school year, Stephen Gaynor School piloted a 15-week course for P.S. 84 teachers to refine their lessons on phonics. ^[6]