Westlake High School (WHS) is a public high school located in Saratoga Springs, Utah, United States. It is part of Utah County's Alpine School District. The school first opened in 2009, serving students in grades 9 to 12. Starting with the 2013-14 school year, 9th grade students were assigned to Frontier Middle School in nearby Eagle Mountain.

Varsity sports for the Thunder include boys' baseball, boys' and girls' basketball, boys' and girls' cross country, boys' football, boys' and girls' golf, boys' and girls' soccer, girls softball, boys' and girls' swim, boys and girls' tennis, boys' and girls' track & field, girls' volleyball, and boys' and girls' wrestling.

In 2012, Westlake High School's marching band was the 4A State Champion with the show "Making of a Masterpiece," and were a Bands of America regional finalist at the St. George BOA regional, taking 10th place. The "Marching Thunder" repeated as Utah 4A State champion in 2013 with their show, "Our Town," and also placed 4th at the St George, Utah Bands of America Regional. During the 2013 season, the color guard won the "best guard" caption award in every competition entered by the Marching Thunder. With their show "Black Tears", they were a Bands of America regional finalist at the St. George and American Canyon, CA BOA regional, taking 7th place in St. George and 9th in American Canyon. They also placed third in the St. George preliminaries.

The Marching Thunder were invited to be the Utah representative to march in the Pearl Harbor Memorial parade in December 2014 and to march in the 2018 Rose Parade in Pasadena, California.

Garett Bolles, American Football Player

WHS offers the following extra-curricular activities:

• List of high schools in Utah

• Official website
• Alpine School District
• School Library site
• Westlake Bands site