York Suburban High School is a Middle-States accredited, comprehensive four-year high school with an enrollment of 850 students located in Spring Garden Township in the U.S. state of Pennsylvania.

York Suburban opened its doors in September 1958 as a school housing approximately 1250 students in grades 7-12. At the time, there were 53 instructors on a team of 61 professionals. Later, the school was modified to accommodate only grades 9-12, as it does today.

Students may select from 150 courses to fill a ten-period day (7:50 AM - 2:25 PM). Offerings in English, social studies, science, mathematics and foreign languages (4) are year-long courses taught at the General, College Preparatory (CP), and Honors courses. Some classes are also available at the AP level. Full year courses are awarded 1.0 credits; semester courses, 0.5. 4 years of English, 3 years of Science, Social Studies, and Mathematics, and 7 in electives including courses in health, driving safety, and computer applications are required.

Twenty athletic teams compete for the Trojans of YS. The school has two synthetic turf fields made by Sprinturf which opened in 2007. The York Suburban boys basketball team won districts for the 2008–2009 season. The girls basketball team won districts in 2024. The boys swim team won the PIAA AA State Team Championship in 2006, 2007, and 2008. The boys cross-country team won the PIAA AA State Championships in 2009 and 2014. The girls cross-country team completed their seasons 18-0 in both the 2008, 2009, 2010, and 2011 seasons, placed all of their top runners in the top 20 at the YAIAA championships in 2010 and 2011, and were district champions in 2023. Theatre opportunities include two annual plays, one fall and one spring, drama club, annual musical and a chapter of the International Thespian Society. There is a National Honor Society, National Art Honor Society, French Honor Society, German honor society, and more recently a Spanish Honor Society. The music program includes opportunities in Marching and Concert band, Concert Choir, YS Singers, Jazz Band, String Ensemble, and Pep Band. There is an active Student Council with a membership of approximately 90 students. YS has a student newspaper. There is Project Harmony, Green Club, Science Olympiad, and SADD.

The York Suburban Marching Band had the privilege of performing the Star Spangled Banner before Game 2 of the 1969 World Series, between the Baltimore Orioles and the New York Mets. The game ended with the Mets winning 2–1.

• Steve Hoffman, former NFL coach
• Ken Ludwig, playwright and theatre director
• DeWolfe Miller III, Vice admiral and Commander, Naval Air Forces
• Todd Platts, attorney and Republican Party politician
• Evan Sharp, co-founder of Pinterest
• Craig Sheffer, film and television actor
• Nathan Keyes, film and television actor

• Official site

39°56′55″N 76°41′37″W / 39.9486°N 76.6935°W / 39.9486; -76.6935