Cynology (from Greek "κύων", "kyōn", genitive "κυνός", "kynos", "dog"; and "-λογία", -logia) is the study of matters related to canines or domestic dogs. "κυν" is also the source of the English word cynic, and is directly related to canine and hound. In English, it may be a term sometimes used to denote serious zoological approach to the study of dogs as well as by writers on canine subjects, dog breeders and trainers and enthusiasts who informally study the dog.

The suffix '-logy' in English words refers to a study, or an academic discipline, or field of scientific study. English Classical compound words of this type may confer an impression of scientific rigor on a non-scientific occupation or profession.

Usage in English of the word cynology is rare and occasionally found in the names of dog training academies, with cynologist sometimes being used as a title by some dog trainers or handlers. People who informally study the dog may refer to themselves as 'cynologists' to imply serious study or scientific work.

The very rare term cynologist in English is generally found to refer to "canine specialists" such as; certified care professionals, certified show judges, breeders, breed enthusiasts, certified dog-trainers and professional dog-handlers.

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