The Stevenson High School orchestra program is comprised of four orchestras:
- Three sections of Concert Orchestra
- Symphonic Orchestra
- Patriot Orchestra
- Advanced Orchestra (2020-21)
All orchestra members perform in four major concerts during the school year. The main emphasis for the orchestra program is the development of total musicianship through the study, preparation and performance of quality literature and an authentic understanding of the language of music through a sequential curriculum of music theory topics.