Memorial High School is a public high school in Eau Claire, Wisconsin that serves grades 9 through 12. It is one of three high schools in the Eau Claire Area School District.

Memorial High School first opened in 1957.

Following a 2022 referendum, Memorial began various renovations projects in June 2024. This included replacing a grass football field with a turf one, including seating and lighting. It also included auditorium and cafeteria renovations.

Dual credit classes are offered for various business, family and consumer science, agriculture, technology, and engineering courses. These classes are taught at Memorial but are transcribed with Chippewa Valley Technical College classes, giving students college credits.

Advanced Placement (AP) classes are offered in English, art, music, science, social sciences, and math. About half of Memorial students take AP classes.

Memorial has two competitive show choirs, the mixed-gender Old Abe Show Choir and the women's-only Eagle Show Choir. The school hosts a show choir competition, Winterfest, which takes place on the first weekend of February each year. Memorial also has three orchestras, the Entry Level Orchestra, the Concert Orchestra and the Old Abe Orchestra. The orchestras play in various events all throughout the year.

Memorial belongs to the Big Rivers Conference for athletics. It has teams in football, cross country, soccer, golf, swimming and diving, tennis, volleyball, basketball, gymnastics, hockey, wrestling, baseball, softball, and track and field. The boys' hockey team won state championships in 2008 and 2013. The girls' cross country team won back-to-back state championships in 2014 and 2015.

In fall of 1992, a 17-year-old student, April Schuldt, who was four months pregnant, received more than 100 votes in the Eau Claire Memorial High School homecoming election. The runner-up, Elizabeth Weld, received fewer than 70 votes but still was crowned queen at the 3-4 Oct. celebration. The principal resigned and three assistant principals and a teacher were disciplined by the school board after an investigation found that ballots for April had been burned in a cover-up. Schuldt appeared on numerous TV talk shows after the incident. April's story was the partial inspiration for the book Election by Tom Perrotta, which was subsequently made into the 1999 movie Election starring Reese Witherspoon and Matthew Broderick.

In early November 2017, an unnamed 15-year-old girl, wrote a message on one of the bathroom stalls claiming, “Get your students out B4 I kill them! If you don’t they will die! I have a loaded gun and bomb!” Eau Claire Police responded to the school and, with the help of administration, conducted a controlled evacuation of the school grounds. No students were harmed or injured during this incident and the girl was later caught by police and sent to juvenile court on charges of terroristic threats.

This article's list of alumni may not follow Wikipedia's verifiability policy. Please improve this article by removing names that do not have independent reliable sources showing they merit inclusion in this article AND are alumni, or by incorporating the relevant publications into the body of the article through appropriate citations. (September 2021)

• Larry Balow – former Wisconsin State Assembly member
• Nickolas Butler – novelist and short story writer
• Jake Dowell – hockey player for the Chicago Blackhawks and University of Wisconsin-Madison
• Dave Duax – former Wisconsin Cabinet Secretary, Vice President of the Eau Claire City Council, and Chairman of the Eau Claire County Board.
• Sarah Godlewski – current Secretary of State of Wisconsin and former State Treasurer of Wisconsin
• Ann Jones – writer, journalist, photographer, educator and civil rights activist
• Michael Kapla – professional ice hockey player
• Geoffrey Keezer – pianist
• Scott D. Legwold – U.S. National Guard general
• Tom Poquette (1970) – Major League Baseball outfielder, 1973, 1976–1979, 1981–1982
• Justin Vernon – frontman for indie band Bon Iver
• Joe Bee Xiong – first Hmong person elected to public office in the United States