Wilmington Montessori School is a Montessori school located in Wilmington, Delaware, United States, serving ages 12 months through eighth grade. It is the state's oldest and largest independent Montessori school. 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. The curriculum is rooted in the principles of the Montessori Method.