The Adventures of Sherlock Holmes is a detective mystery radio show that aired in the United States between 1930 and 1936, adapting Sir Arthur Conan Doyle's Sherlock Holmes stories. It returned as The New Adventures of Sherlock Holmes from 1939 to 1950, which continued to focus on the legendary detective's gripping cases. The original series was largely scripted by Edith Meiser, who not only adapted all but one of Doyle's stories but also crafted several original episodes. Meiser returned to work on The New Adventures until 1943, when she left over a dispute with a sponsor over the amount of violence in the program, returning again to write the seventh season.

Sherlock and Dr. Watson were played by many different actors, initially by Richard Gordon and Leigh Lovell respectively in the original series, then primarily by Basil Rathbone and Nigel Bruce in The New Adventures. The original series consisted of 179 episodes over five seasons, and The New Adventures had 374 episodes over nine seasons. They both aired on a variety of different networks over the course of their runs.

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