Westlake High School is a public high school located in Westlake, Ohio, United States, west of Cleveland. It is the only high school in the Westlake City Schools district.

Westlake High School was rebuilt and completed in 2013. The high school features a rotunda housing the cafeteria. Academic wings are divided into two floors, with classrooms grouped in sections, known as wings. The A wing houses Miscellaneous rooms, the B wing houses English on the first floor, and Mathematics on the 2nd floor. The C wing houses the sciences, and is only one floor. The D wing houses history on the first floor and Foreign Language/ESL on the 2nd floor. The E wing hosts Arts and T&E classes. There is no 2nd floor. The F wing hosts music education and the large Performing Arts Center, housing 400 seats and a mainstage with a pit.

The school has one baseball diamond, two softball diamonds, five tennis courts, and a football stadium complete with turf, where Westlake plays in the fall, winter, and spring.

Westlake High School offers AP (Advanced Placement) and CCP (College Credit Plus) courses offered through Cuyahoga Community College, in a addition to a variety of honors classes and electives spanning from arts, business, computer science/technology, and engineering. The Westshore Career Technical Program in partnership with other area schools provides students with experience to go into blue-collar jobs if they so choose.

Ninety percent of students who graduate Westlake continue on to a two or four year university.

• 79.1% White
• 7.3% Hispanic
• 6.5% Asian
• 4.9% Two or More Races
• 2.1% African American
• 0.2% Native American

Westlake High School is known for having a large Arab-American population, comprising approximately 20% of the student body.

Westlake High School has a variety of sports teams that compete in the Great Lakes Conference throughout the school year.

Fall sports include football, cross country, golf, tennis, soccer, volleyball, and cheer.

Winter sports include basketball, gymnastics, wrestling, hockey, swimming and diving, cheer, and bowling.

Spring sports include baseball, softball, track, lacrosse, and tennis.

The school mascot, the Demon, has occasionally caused controversy because of its assumed religious connotations. When Westlake was known as Dover, the school teams were called the "Dover Men". Popular usage shortened this to "D-Men", which when spoken is indistinguishable from the word 'demon', hence the current name.

The Green and White is a monthly student newspaper serving Westlake High School. WHBS-Television is a weekly student news channel serving Westlake High School

• JaQuan Hardy, Professional football running back who played for the Dallas Cowboys
• Kevin Houser, Professional football long-snapper who played for the New Orleans Saints, Seattle Seahawks, and Baltimore Ravens
• Robert Overmyer, Astronaut
• Logan Paul, YouTuber and professional wrestler
• Jake Paul, YouTuber and professional boxer
• Steve Ricchetti, Counselor to the President and former Chief of Staff to the Vice President (2013-2017)

• Dylan Baldi, lead singer and guitarist of the Cloud Nothings

• Official website