Saint Demetrios Preparatory School
Address
30-03 30th Street Astoria, Queens , New York 11102 United States
Information
Type	Private high school
Motto	Aien Aristeuein ("Ever to Excel")
Religious affiliation(s)	Greek Orthodox
Established	1956
Grades	PK-12
Enrollment	700
Student to teacher ratio	18:1
Mascot	Knight
Website	www.sdprep.org

Saint Demetrios Preparatory School is a private Greek Orthodox Christian school located in Astoria, Queens, New York City. It is the largest Greek-American and Greek Orthodox day school in the United States, as well as the only Greek Orthodox high school in the United States.^[1] It enrolls students from preschool to twelfth grade.

The school is associated with the Saint Demetrios Cathedral.^[2]

History

The school was founded in 1956.

The elementary school building was purchased in 1974, after a wave of immigration by Greek Cypriots to Astoria created a need for additional classrooms. A $1 million donation in 2017 allowed the school to modernize the elementary school facilities.^[3]

Greek and Greek-American dignitaries have visited the school, including Antonis Samaras in 2013, Alexis Tsipras in 2016, and Archbishop Elpidophoros of America in 2019.^[4][5][6]