Delta Secondary is a public high school in Ladner, British Columbia, Canada.

The official opening of the "Ladner Elementary and Junior/Senior High School Centre" took place in April 1939[citation needed].

Secondary[citation needed] while the Central School building (B block) and various additions made up the Delta Sr.

On June 2, 1998, a formal dedication of the redevelopment of the school was held[citation needed].

In 1990, the oldest structure remaining on the site is the West gymnasium[citation needed] In late summer 2003, DSS finished construction of its newest building; a brand new, seismically upgraded gymnasium.