This category is for centers, offices, organizations, missions and other entities operated by the Church of Scientology (CoS).

The term "org" or "organization" is used in Scientology jargon to mean any office (e.g. Saint Hill Manor), corporate (e.g. Religious Technology Center) or unincorporated entity (e.g. Sea Org) or (sometimes) functional unit within another org (e.g. Office of Special Affairs). A CoS office will typically host both a "Day Org" (weekday business hours) and a "Foundation Org" (evenings and weekends), operating separately from the same premises. Since 2010 the Nation of Islam has offered officially certified Dianetics courses as an affiliate organization.