Bartlett High School is a public four-year high school located in Bartlett, Illinois, a northwest suburb of Chicago, Illinois, in the United States. It is part of Elgin Area School District U46, which also includes Elgin High School, Larkin High School, South Elgin High School, and Streamwood High School. The school was opened in August 1997 as the fourth high school in the Elgin Area School District U46.