James B. Conant High School is a public four-year high school located in Hoffman Estates, Illinois, a northwest suburb of Chicago, Illinois, in the United States. It is part of Township High School District 211, which also includes William Fremd High School, Hoffman Estates High School, Palatine High School, and Schaumburg High School. Feeder schools are Mead Junior High, Keller Junior High, and Frost Junior High.