Whitmer High School is a public high school in Toledo, Ohio, USA, named for John Wallace Whitmer, an educator who helped organize high school classes for the area. It is the only high school in the Washington Local School District in Lucas County, Ohio, serving the northwest section of Toledo up to the Michigan state line. It is the largest high school in the Toledo area. Whitmer offers 200 courses including honors and AP classes, 16 career training programs, 22 varsity sports, and more than 50 extracurricular activities.