This is an incomplete list of the symbols of Scientology

Scientology

Scientology is a body of beliefs and related practices created by science fiction and fantasy author L. Ron Hubbard , starting in 1952, as a successor to his earlier self-help system, Dianetics...

, the Church of Scientology

Church of Scientology

The Church of Scientology is an organization devoted to the practice and the promotion of the Scientology belief system. The Church of Scientology International is the Church of Scientology's parent organization, and is responsible for the overall ecclesiastical management, dissemination and...

, and related organizations.

Name	Image	Description
Scientology symbol		The "new-era" Scientology symbol is an "S" curving through two triangles. The "S" stands for Scientology. The top triangle represents a set of Scientology factors — knowledge, responsibility and control. Collectively the first three factors make up the KRC triangle. The lower triangle consists of the ARC triangle of affinity, reality and communication.
Dianetics symbol		The stripes of this symbol represent green for growth, and yellow for life. The four green stripes recall the four divisions of a human's urge to survive which are revealed in Dianetics Dianetics Dianetics is a set of ideas and practices regarding the metaphysical relationship between the mind and body that was invented by the science fiction author L. Ron Hubbard and is practiced by followers of Scientology... . The triangle is also reminiscent of the volcano Volcano 2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...  present on post-1968 editions of the book Dianetics and in advertising for Dianetics since that time.
Infinite Dianetics symbol		Scientology teaches that all beings have an "urge towards the infinite." This symbol reflects the belief in Scientology that Dianetic processing (the triangle) aids in the attainment of the infinite. Some variants of this symbol have an infinity symbol overlapping a triangle, while others place the infinity within the triangle's boundaries, as on the front cover of some versions of Route to Infinity.
Operating Thetan symbol		The Operating Thetan Operating Thetan In Scientology, the state of Operating Thetan is a spiritual state above Clear. L. Ron Hubbard, the founder of Scientology, defined it as "knowing and willing cause over life, thought, matter, energy, space and time ". According to religious scholar J...  symbol is patterned after the Egyptian hieroglyphic Egyptian hieroglyphs Egyptian hieroglyphs were a formal writing system used by the ancient Egyptians that combined logographic and alphabetic elements. Egyptians used cursive hieroglyphs for religious literature on papyrus and wood...  of a scarab beetle Scarabaeus sacer Scarabaeus sacer is a species of dung beetle, found in coastal dunes and marshes around the Mediterranean Basin. It collects balls of dung which it rolls to an underground chamber to feed its offspring. This behaviour inspired the Ancient Egyptians to compare it to the sun god Khepri, and they... . Scarab beetles were symbolic of resurrection and renewal, and are also an important part of Rosicrucianism . The Operating Thetan symbol is prominently displayed on the side of the Scientology cruise ship Freewinds Freewinds MV Freewinds is a cruise ship operated by International Shipping - Miami and owned by San Donato Properties, which is a company connected to the Church of Scientology. It was built in 1968 by Wärtsilä Turku Shipyard in Turku, Finland for Wallenius Lines as MS Bohème for service with Commodore... (see :Image:Freewinds logo.jpg). Operating Thetans are said to be in a spiritual state above Clear Clear (Scientology) Clear in Dianetics and Scientology is one of two levels a practitioner can achieve on the way to personal salvation. A state of Clear is reached when a person becomes free of the influence of engrams, unwanted emotions or painful traumas not readily available to the conscious mind... . Scientologists say that one who has achieved the state of Operating Thetan is essentially a being able to operate free of the encumbrances of the material universe, as outlined in Scientology 8-8008.
Church of Scientology cross symbol		This symbol is mainly used to specifically denote the Church of Scientology, and may or may not represent the practice of Scientology in general. The cross's eight points represent the eight dynamics in Scientology. See Scientology cross Scientology cross The Scientology cross is one of the principal symbols of Scientology. It is most often used to represent the Church of Scientology.The cross closely resembles the Christian cross, but differs from it with the addition of four diagonal rays between the conventional horizontal and vertical arms...  for more details on this symbol.
Sea Org symbol		The Sea Org Sea Org The Sea Organization or Sea Org is an association of Scientologists established in 1968 by L. Ron Hubbard, the science fiction writer and founder of Scientology. Its members are found in the central management organizations of the Church of Scientology as well as in individual churches...  is the central management organisation of the Church of Scientology. The Sea Org was founded by Scientology leader L. Ron Hubbard in 1968, as an organisation for implementing Scientology technology around the world through the operation of a fleet of ships. Members of the Sea Org sign an employment contract with the organisation for one billion years. This symbol originated in Operating Thetan Operating Thetan In Scientology, the state of Operating Thetan is a spiritual state above Clear. L. Ron Hubbard, the founder of Scientology, defined it as "knowing and willing cause over life, thought, matter, energy, space and time ". According to religious scholar J...  level III, the Xenu Xenu Xenu ,also spelled Xemu, was, according to the founder of Scientology L. Ron Hubbard, the dictator of the "Galactic Confederacy" who, 75 million years ago, brought billions of his people to Earth in a DC-8-like spacecraft, stacked them around volcanoes and killed them using hydrogen bombs...  story, as a symbol representing the Galactic Confederacy of 75 million years ago.
L. Ron Hubbard symbol		This symbol is a pictograph made of a cursive "L", "R" and "H". Designed to imitate an assay office Assay office Assay offices are institutions set up to assay precious metals, in order to protect consumers. Upon successful completion of an assay, Assay offices are institutions set up to assay (test the purity of) precious metals, in order to protect consumers. Upon successful completion of an assay, Assay...  hallmark Hallmark A hallmark is an official mark or series of marks struck on items made of precious metals — platinum, gold, silver and in some nations, palladium... , it is used to authenticate L. Ron Hubbard's many works.
Church of Spiritual Technology logo		The symbol for the Church of Spiritual Technology Church of Spiritual Technology The Church of Spiritual Technology, also known as CST, is a Californian 501 non-profit corporation, incorporated in 1982, which owns all the copyrights of the estate of L. Ron Hubbard. The CST is doing business as L. Ron Hubbard Library...  is engraved into the Earth's surface in Scientology's Trementina Base Trementina Base Trementina Base is the popular designation for a property of the Church of Spiritual Technology near Trementina, New Mexico.-Overview:According to the CST, an entity formed to manage the Church of Scientology's copyright affairs, the purpose of the base is to provide storage space for an archiving... , in a mountainous region of New Mexico , large enough to be seen from a high altitude. Former Church member Michael Pattinson Michael Pattinson Michael Pattinson is an Australian film director. He has directed over 40 films and television shows since 1980. In 1987, along with Bruce Myles, he co-directed the film Ground Zero. It was entered into the 38th Berlin International Film Festival.-Selected filmography:* Street Hero * Ground Zero...  has said that the circles are intended as signposts for reincarnated Scientologists who will come from outer space.

Trademarks

All official symbols of Scientology are trademarks held by the Religious Technology Center

Religious Technology Center

The Religious Technology Center is a Californian non-profit corporation. RTC was founded in 1982 by the Church of Scientology in order to control and oversee the use of all of the trademarks, symbols and texts of Scientology and Dianetics, including the copyrighted works of Scientology founder and...

(RTC). They are said by the center to be used "on Scientology religious materials to signify their authenticity ... and provide a legal mechanism to ensure the spiritual technologies are orthodox and ministered according to Mr. Hubbard's Scripture. These marks also provide the means to prevent anyone from engaging in some distorted use of Mr. Hubbard's writings, thereby ensuring the purity of the religion for all eternity."