Harriton High School

Harriton hosts a successful Science Olympiad chapter. The Team has placed among the top 10 at the Science Olympiad National Tournament for 21 consecutive years, winning three national championships and 16 consecutive state championships in that span.[5][6]

Harriton competes in the Southeastern Region for Regionals and Pennsylvania for States.[7] Although they have not run any invitationals in the past, Harriton participates in multiple of invitationals, including Conestoga, Twin Tiers (Athens), Solon, Wright State, Massachusetts Institute of Technology (MIT), Cornell, Upenn and Princeton.[7] In the states competition, Harriton held the longest winning streak out of any Pennsylvanian team, athletic or not—placing first place at States for sixteen consecutive years (1997 to 2013). At the National competition, the team won the national title in 1995, 2001 and 2005. Additionally, the team has competed in the national competition from 1994 to present, 22 years. In more recent years, Harriton has not performed as well in Science Olympiad. In the 2021 season, the team got second at states, losing to Lower Merion High School. The team then went on to place 16th at the national tournament, the first time since 1993 that the team did not place in the top 10 at nationals.[8] The 2020 regional, state, and national competitions were cancelled due to the Covid-19 pandemic.

Harriton High School features a chapter of the United States Academic Decathlon. The chapter participates in the Eastern Pennsylvania Regional Competition.[9]

Harriton features a full concert band and orchestra. Harriton also features a performance jazz band. Every fall and spring, Harriton stages a music concert featuring all the ensembles, as well as an occasional string quartet and percussion ensemble. Neither high school in Lower Merion School District supports a marching band, but Harriton does have its own "RAM Band", which plays at home and away football games.

Every year Harriton musicians audition for positions in the PMEA district band and/or orchestra.

The school newspaper had been called the Harriton Forum or the Harriton Free Forum since the opening of Harriton High School in 1957. In October 2006, it was renamed the Harriton Banner.[10]

Harriton High School features a chapter of the Future Business Leaders of America. The chapter has been highly successful in the last few years. Members who advance past the PA Region 20 competition are eligible to compete in the annual State Leadership Conference (SLC) in Hershey, Pennsylvania. Members of FBLA chapters from across the State of Pennsylvania compete at the SLC for the right to compete in the National Leadership Conference (NLC).

Harriton TSA has had successes at regional, state, and national competitions, including a TSA national championship in Prepared Presentation in 2010. Harriton TSA members held five of the eight Pennsylvania TSA state officer positions. The four Lower Merion School District TSA chapters, including Harriton's TSA, consistently win more awards than any other school district in the Commonwealth of Pennsylvania. As TSA itself deals within the realm of STEM learning, it is often compared to the successful Science Olympiad team.

Mr. Harriton 2010, an event by the Student Council

This is the main body of representation for the Harriton student body. HSC holds meetings that are open to any Harriton student. HSC recruits members, who vote on issues at the meetings. Members are divided into six committees: Students' Rights, Events, Communication, Finance, Planning, and Technology. There is a sub-committee under Students' Rights that was established after the district initiated the 1:1 laptop-to-student initiative (the Students' Rights Technology Sub-Committee). Council is the organizing and executing body of the annual "Mr. Harriton" competition, one of the flagship productions at Harriton High School. Mr harriton is a competition between male students engaging in a "beauty pageant" style competition. It is generally a comedic event and it raises money for charity. The Student Council collects revenue from the show through ticket sales and catalog advertising. In 2014, the Student Council raised a record $17,000, all of which went to charity.[11] In December 2018, the name of the event was changed to "Dr. Harriton" to reflect the fact that anyone may participate.[12]

• Girls tennis PIAA Team Tennis Title 2004-2010.[14] After moving up to Class AAA in 2012, girls tennis won the PIAA State Class AAA Team Tennis Titles in 2016, 2017, and 2019.[15]
• Harriton's girls lacrosse won the PIAA State Championship in 2013[16] and 2019.[17] Harriton's boys lacrosse won Pennsylvania State championships in 1970, 1971, and 1972 and came in second in 1974 and 1975.
• In the Spring of 2013, the Women's Varsity 4+ boat won the Scholastic National Championships, as well as made it to the final round of the Women's Henley Regatta in Henley-on-Thames, England. Both its girls' and boys' teams have won races in the all-city regatta. In 1976, Harriton's Varsity 4+ won the boys Stotesbury Regatta. In 1977, the boys Varsity 4+ won the Boys National Championship on Lake Carnegie in Princeton, NJ.
• The school has a boys and girls swim team. As of 2016, the boys teams have won 3 out of the last 5 state championships and the girls have won 2 out of the last 4.[10]