Watsonian may refer to:
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Watsonian Squire
Watsonian Squire is a British manufacturer of sidecars and Motorcycle trailer, trailers for attachment to motorcycles. The original business was established in 1912 by Thomas Fredrick Watson as the Patent Collapsible Sidecar Company Ltd. at Balsal ...
, an historic brand name of sidecar for motorcycles
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List of people educated at George Watson's College, former pupils of George Watson's College in Edinburgh, known in some circles at "Watsonians"
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Dr. Watson
John H. Watson, known as Dr. Watson, is a fictional character in the Sherlock Holmes stories by Sir Arthur Conan Doyle. Along with Sherlock Holmes, Dr. Watson first appeared in the novel ''A Study in Scarlet'' (1887). The last work by Doyle fe ...
, a character in the Sherlock Holmes stories by Sir Arthur Conan Doyle
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