Founded in 1942, High Mowing School is an independent private, co-educational, day and boarding school, located in Wilton, New Hampshire, in the United States. High Mowing serves students in early childhood through grade 12. It is the oldest Waldorf high school in Canada or the United States and the only Waldorf boarding school in the United States.

Wilton is a town in Hillsborough County, New Hampshire, United States. The population was 3,896 at the 2020 census. Like many small New England towns, it grew up around water-powered textile mills, but is now a rural bedroom community with some manufacturing and service employment. Wilton is home to the High Mowing School, a private preparatory school.