Astrologer or Astrologist? Understanding the Terms Used for Astrology Experts
The words “astrologer” and “astrologist” are often treated as interchangeable, but there is an important difference in how commonly they are used and how practitioners of astrology generally identify themselves. In contemporary English, “astrologer” is the established and much more widely recognized term for a person who practices or interprets astrology. Cambridge Dictionary defines an astrologer as someone who studies astrology and uses it to explain how they believe celestial influences affect people’s lives, while Oxford similarly describes an astrologer as someone who uses astrology to discuss character and possible future events.
“Astrologist,” however, is not simply an invented or grammatically meaningless word. Major dictionaries recognize it. Collins defines an astrologist as “a person who practises astrology,” while Dictionary.com lists “astrologer” as the definition of astrologist. This means that the word exists in standard English and can be understood by readers, even though it is considerably less common than “astrologer.”
The strongest distinction between the two terms is therefore one of usage rather than a strict difference in professional duties. Both words can refer to someone involved in astrology, and dictionaries do not consistently establish separate occupations for them. In practical modern English, someone who interprets birth charts, horoscopes, planetary positions or other astrological systems would normally be called an astrologer.
“Astrologer” has a particularly strong presence in established English usage. Cambridge, Oxford and Collins all use the word to describe someone who practices or uses astrology. Oxford’s definition specifically connects the astrologer with interpreting information about a person’s character and what might happen in the future, while Collins describes the astrologer as someone who uses astrology to discuss character and the future.
By contrast, “astrologist” appears to function primarily as an alternative term. Collins explicitly defines it as a person who practices astrology, and Dictionary.com treats it as a synonym for astrologer rather than assigning it a fundamentally different role. Consequently, describing an astrologer as an “astrologist” will generally be understood, but the latter term is less conventional.
The difference becomes particularly relevant in professional introductions and published writing. Contemporary discussions among astrology practitioners indicate a strong preference for “astrologer.” The Astrology Podcast, for example, examined the terminology in 2022 and reported that informal polls among practitioners showed a substantial preference for “astrologer” over “astrologist.” Those polls are not scientific surveys of the entire profession, but they illustrate the terminology commonly preferred within contemporary astrology communities.
There is also a linguistic reason the confusion occurs. English uses both “-er” and “-ist” to describe people associated with activities or fields of knowledge. Words such as “researcher,” “teacher,” “artist” and “scientist” demonstrate that there is no single universal rule governing which suffix should be used. In the case of astrology, historical English usage ultimately established “astrologer” as the dominant form, even though “astrologist” developed alongside it and remains recognizable.
The distinction should not be confused with the difference between astrology and astronomy. An astrologer practices astrology, which traditionally interprets celestial positions in relation to human life and events. An astronomer, on the other hand, is a scientist who studies celestial objects and phenomena using scientific methods. The similarity of the words can sometimes create confusion, but the two fields have fundamentally different purposes and methodologies.
An astrologer may work within several different traditions. Some practitioners specialize in natal astrology and interpret a birth chart; others focus on predictive techniques, relationship astrology, electional astrology or particular cultural systems. In India, practitioners may work within Jyotisha traditions and use concepts such as the kundali, rashis, nakshatras, planetary periods and other techniques specific to particular schools. The title “astrologer” can therefore encompass practitioners whose methods and traditions differ substantially.
The term also covers more than people who write newspaper or online horoscopes. A horoscope can be a chart representing celestial positions at a particular time or a written interpretation derived from such a chart. An astrologer may therefore construct and interpret an individual’s natal chart rather than simply provide a generalized daily horoscope for one of the twelve zodiac signs.
Modern technology has further expanded the work associated with astrologers. Computerized chart-generation systems can calculate planetary positions and produce birth-chart diagrams within seconds. The interpretive work, however, remains dependent on the particular astrological tradition and methodology used by the practitioner. As a result, two astrologers can examine the same birth information and offer different interpretations.
It is also worth recognizing that terminology does not establish whether astrology’s claims are scientifically validated. Calling someone an astrologer or astrologist describes their relationship to the astrological tradition; it does not establish that astrological predictions or interpretations have been scientifically demonstrated. Modern astronomy and astrology should therefore remain conceptually separate when discussing the subject in an informative article.
For ordinary English usage, the practical answer is straightforward: “astrologer” is the standard and preferred term for someone who practices astrology. “Astrologist” is a real dictionary word and is generally understood as referring to the same kind of person, but it is less commonly used. Collins explicitly recognizes both forms, while Cambridge and Oxford use “astrologer” in their definitions of the practitioner.
The difference, therefore, is mainly about convention rather than two clearly separate professions. Someone who reads birth charts, interprets planetary positions or provides astrological consultations can accurately be described as an astrologer. “Astrologist” may appear in books, media reports and everyday speech, and dictionaries recognize it, but “astrologer” remains the clearer and more established choice when referring to an expert or practitioner of astrology.
