South Delta Secondary (SDSS) is a public high school in Tsawwassen, British Columbia, Canada.

SDSS is the only secondary school in South Delta that has a French Immersion program.

Students who complete the French Immersion program at SDSS will graduate with a Double Dogwood diploma.

During the following years students from Grades 8 through 12 attended classes in both the Senior (North) and Junior (South) buildings.

The North building was subsequently expanded to accommodate all students, and now South Delta Secondary is the only public high school in the community of Tsawwassen.