The Process, or in full, The Process Church of the Final Judgment, commonly known by non-members as the Process Church, was a religious group that flourished in the 1960s and 1970s, founded by the English couple Mary Ann and Robert DeGrimston (originally Robert Moor and Mary Ann MacLean). Originally headquartered in London, it had developed as a splinter group from Scientology, so that they were declared "suppressive persons" by L. Ron Hubbard in December 1965.