Delta-S is a Christian industrial/progressive trance band formed in Camarillo, California, United States in 1995.

Band members currently include Lyte, who writes and produces a bulk of the work, and Lucien, who tests the material's emotional value and authenticity.

Work began on the production of their first album, including some collaboration with the band Calcutta and artists Duke and Joshua Vosper.

In 2000, the band adopted a new member, Lucien, and work started on a third album, Chasm.

The album featured several guest vocalists including Kirsty Hawkshaw and Sheri Shaw of Deitiphobia.