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- A NOTE 1: CLICK HERE TO CREATE A NEW CLUB
- A NOTE 2: ALL CLUBS REQUIRE DRUG TESTING BEFORE JOINING
- Academic Decathlon
- Academic Games
- All-School Musical
- Art Club (MS)
- Art Club (IHS)
- Art Club (SHS)
- ASL Club (American Sign Language)
- Band (Marching)
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- Chess and Checkers Club (MS)
- Christian Fellowship Club
- Class - Freshman
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- Colorguard, Band Auxiliary
- Computer Science Club
- FCCLA
- FACS / ARTS (MS)
- Environmental/Fishing Club (MS)
- Gender and Sexuality Advocacy Club
- German Club
- Golf Club (MS)
- Graphic Arts Club (SHS)
- Helping Hands Club (MS)
- Industrial Technology Club
- Junior Classical League (Latin Club)
- JROTC
- Key Club
- Library Club (7-8)
- Madrigal Singers
- Medical Careers Club
- Mountain Bike Club
- National Honor Society
- Newspaper (IHS)
- Newspaper (MS)
- Newspaper (SHS)
- Outdoor Adventure Club (MS)
- Philosophy Club
- Play (MS)
- Play (IHS)
- Play (Spring/Thespian 9-12)
- Pottery Club (SHS)
- Pom Pon, Band Auxiliary
- Seneca Valley Television (SVTV)
- Science Honors Society
- Ski Club (10-12)
- Ski Club (7-9)
- Student Council (IHS)
- Student Council (MS)
- Student Council (SHS)
- S.W.E.E.T. (Seneca's Women Engineering Exploration Team)
- Tabletop Gaming Club
- Teens 'n Tots Club (SHS)
- Thespian Troupe (9-12)
- Tri M National Honorary Music Society
- Video Club (MS)
- Video Remake Club
- Weight Lifting Club (MS)
- Yearbook (SHS Class)
- Yearbook (MS)
- Lego League Club
- Light Crew (IHS)
- Light Crew (SHS)
- Robotics
- Songwriting Club
- Pickleball (MS)
- FBLA Club (Future Business Leaders of America)
- SHOUT
- World Language Outreach Community Club
- Speech & Debate Club
- Global Connections Club
- Holidays and Festivities Club
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