A Scientologist is an adherent of the doctrines and beliefs of Scientology. Some adherents of the belief system of Scientology practice independently in what is often referred to as free zone Scientology. The Church of Scientology organization claims "SCIENTOLOGIST is a collective membership mark indicating membership in a church and church membership services of the affiliated Scientology churches and missions." Scientologists not in trouble with the ethics department are considered "in good standing" and are allowed to be on Church of Scientology premises, receive services, and attend events.

Members

Public Scientologists are those individuals who are not staff. They pay the Church of Scientology for training or auditing services, and live and work independent of the organization. Collectively, non-staff Scientologists may be referred to as "members", the "public", or the "field". Even though public members are not employed by the organization, they are ranked within the entire chain of command and defer to all staff personnel, who are seen as their seniors. Members are frequently pressed into service for clerical or promotional tasks or to recruit new members. Members who recruit people for Scientology services are called "field staff members" (FSM) and are paid a commission of 10%–15% of the amount their recruit pays for a service. The lists below contain names of public Scientologists. For Scientologists who are, or were, on staff, see.

Current

Deceased

This table includes members who were still Scientologists in the Church of Scientology at the time of their death.

Former members

This table represents individuals who were previously Scientologists, but who have since left the Church of Scientology.