The Northwest School is a private, coeducational boarding and day school located in Seattle, Washington. Founded in 1980, the school serves students in grades 6 through 12 and offers a rigorous academic program that emphasizes critical thinking, collaboration, and creativity. The Northwest School is known for its small class sizes and its diverse student body, which includes students from all over the world.

In addition to its academic program, The Northwest School offers a wide variety of extracurricular activities, including athletics, performing arts, and clubs. The school also has a strong commitment to sustainability and environmental stewardship.

The Northwest School is a member of the National Association of Independent Schools (NAIS) and the Pacific Northwest Association of Independent Schools (PNAIS).