Senn High School is a public four-year high school located in the Edgewater neighborhood on the North Side of Chicago, Illinois, United States. Senn is operated by the Chicago Public Schools system and was opened on 3 February 1913. The school is named in honor of surgeon, instructor, and founder of the Association of Military Surgeons of the United States Nicholas Senn. Senn has advanced placement classes, an International Baccalaureate Diploma Program, a fine arts program, and a Junior Reserve Officers' Training Corps program. It formerly housed the public but administratively separate, Hyman Rickover Naval Academy. The architect for the Senn High School building and campus was Arthur F. Hussander, who was the chief architect for the Chicago Board of Education; the contractor was Frank Paschen.

Edgewater is a lakefront community area on the North Side of the city of Chicago, Illinois six miles north of the Loop. The most recently established of the city's 77 official community areas, Edgewater is bounded by Foster Avenue on the south, Devon Avenue on the north, Ravenswood Avenue on the west, and Lake Michigan on the east. Edgewater contains several beaches for residents to enjoy. Chicago's largest park, Lincoln Park, stretches south from Edgewater for seven miles along the waterfront, almost to downtown. Until 1980, Edgewater was part of Uptown, and historically it constituted the northeastern corner of Lake View Township, an independent suburb annexed by the city of Chicago in 1889. Today, Uptown is to Edgewater's south, Lincoln Square to its west, West Ridge to its northwest and Rogers Park to its north.