Highland Park High School, or HPHS, is a public four-year high school located in Highland Park, Illinois, a North Shore suburb of Chicago, Illinois, in the United States. It is part of Township High School District 113, which also includes Deerfield High School.

Prior to the 1949–50 school year, the school was known as Deerfield-Shields High School. Aside from its academic accomplishments, the school is best known for its successful alumni who include World War II General and Medal of Honor recipient Jonathan Mayhew Wainwright IV, author William Goldman (The Princess Bride), actor Gary Sinise, and former CIA director Stansfield Turner.

For a period of approximately fourteen years following Highland Park High School's establishment in 1886, classes were held in the rooms over the Brand Brothers paint shop in downtown Highland Park. It has occupied the present site on Vine Avenue since 1900. Over the course of time, however, several additions have been constructed. In 2000, HPHS and its sister school, Deerfield High School underwent a two year, $75 million renovation and expansion project. HPHS received several new additions and renovations with 130,000 square feet (12,000 m²) renovated and 77,000 square feet (7,200 m²) added. The additions and renovations were designed by Legat Architects and executed by VACALA Construction, Inc.

Highland Park is a suburban municipality in Lake County, Illinois, United States, about 23 miles (37 km) north of downtown Chicago. As of 2009, the population is 33,492. Highland Park is one of several municipalities located on the North Shore of the Chicago Metropolitan Area.

Highland Park was founded in 1869 with a population of 500, and evolved from two settlements: St. John and Port Clinton. The town also annexed the Village of Ravinia in 1899.

Highland Park has several attractions including a vibrant downtown shopping district and Ravinia Festival, the summer home of the Chicago Symphony Orchestra and a nightly music program covering classical, blues, jazz and rock. The Ravinia Festival is located in the Ravinia District, originally an artists' colony which still retains much of its early character and architecture.

Highland Park has several landmark structures listed in the National Register of Historic Places, notably the Willits House, by Frank Lloyd Wright. In addition to several houses designed by Wright, the National Register lists homes designed by prominent architects including John S. Van Bergen, Howard Van Doren Shaw, Robert E. Seyfarth, and David Adler. Landscape architect Jens Jensen lived in Highland Park and designed a number of projects in the community that are listed on the register.

Illinois (ⁱ/ˌɪlɨˈnɔɪ/ IL-i-NOY) is the 25th most extensive and the 5th most populous of the 50 United States, and is often noted as a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal, timber, and petroleum in the south, Illinois has a broad economic base. Illinois is a major transportation hub. The Port of Chicago connects the state to other global ports from the Great Lakes, via the Saint Lawrence Seaway, to the Atlantic Ocean; as well as the Great Lakes to the Mississippi River, via the Illinois River. For decades, O'Hare International Airport has ranked as one of the world's busiest airports. Illinois has long had a reputation as a bellwether both in social and cultural terms and politics.

Although the state's largest population centers today are in northern Illinois, originally the state's population grew from south to north, with settlers arriving from Kentucky in the 1810s. In 1818, Illinois achieved statehood. Chicago was founded in the 1830s on the banks of the Chicago River, one of the few natural harbors on southern Lake Michigan. Railroads and John Deere's invention of the self-scouring steel plow turned Illinois' rich prairie into some of the world's most productive and valuable farmlands, attracting immigrant farmers from Germany and Sweden. By 1900, the growth of industrial jobs in the northern cities and coal mining in the central and southern areas attracted immigrants from Eastern and Southern Europe. Illinois was an important manufacturing center during both world wars. The Great Migration established a large community of African Americans in Chicago that created the city's famous jazz and blues cultures.

Several high schools are known as Highland Park High School including:

The Association is a pop music band from California in the folk rock or soft rock genre. During the 1960s, they had numerous hits at or near the top of the Billboard charts and were the lead-off band at 1967's Monterey Pop Festival. As of 2011^[update], they are still performing.

Jules Alexander (born September 25, 1943, Chattanooga, Tennessee) was in Hawaii in 1962 serving a stint in the Navy when he met Terry Kirkman (born December 12, 1939, Salina, Kansas), a visiting salesman. The two young musicians jammed together and promised to get together once Alexander was discharged. That happened a year later; the two eventually moved to Los Angeles and began exploring the city's music scene in the mid-1960s. (Kirkman played in groups with Frank Zappa for a time before Zappa went on to form The Mothers of Invention). Eventually, at a Monday night hootenanny at the LA nightclub The Troubadour, in 1964, an ad hoc group called The Inner Tubes was formed by Terry, Jules and Doug Dillard, whose rotating membership contained, at one time or another, Cass Elliot, David Crosby and many others who drifted in and out. This led, in 1965, to the forming of The Men, a 13 piece folk-rock band. This group had a brief spell as the house band at The Troubadour.