Wilmington Montessori School is a Montessori school located in New Castle County, Delaware, United States, serving ages 12 months through eighth grade.

[2] Its facility has more than 30 classrooms, a library/learning commons, gymnasium, indoor and outdoor performance stages, music and arts rooms, three age-appropriate makerspaces, outdoor playing fields, and wooded walking paths.

[3] The school later moved to the Buzz Ware Village Center in Arden.

On November 14, 2008, Wilmington Montessori initiated a school-wide single-stream recycling program to help the school reduce its carbon footprint and to teach students the habit of recycling and the benefits to the Earth.

The program was supplemented with a grant from Delaware's Department of Natural Resources & Environmental Control.