Stratford District Secondary School is a public secondary school in Stratford, Ontario, Canada.

Students can study a full range of courses to prepare for university, college, apprenticeship and the workforce, along with Five Specialist High Skills Majors (SHSM) courses: Health & Wellness, Energy, Transportation, Manufacturing and Hospitality & Tourism.

In 2014, the school had an enrollment of 1,150 students in grades 7–12.

2014 extra-curricular activities included a wide range of athletics and clubs including Me To We, Fly Fishing Club, Concert Band, Drama Club, E-Team and spring baseball.

In 2025, the school has an enrollment of 1,460 students in grades 9-12.

2025 extra-curricular activities included a wide range of athletics and clubs including baseball, basketball, cross country, rugby, soccer, swimming, tennis, volleyball, Board Game Club, Culinary Club / The Avocado (formerly Screaming Avocado), Debate Club, Golden Bears Broadcasting, Retro Video Game Club, SDSS Music, Stratford Law, Stratford Robotics, and many more.