Sir Arthur Conan Doyle's Sherlock Holmes, also known simply as Sherlock Holmes, is a 2010 British-American steampunk mystery film directed by Rachel Lee Goldenberg and produced by independent American film studio The Asylum. It features the Sherlock Holmes characters created by Sir Arthur Conan Doyle, though it follows an original plot. The film details an unrecorded case in which eccentric detective Holmes and his companion Dr. Watson investigate a series of unusual monster attacks and a plot to destroy London. Gareth David-Lloyd plays Dr. John Watson and Ben Syder, making his film debut, plays Sherlock Holmes.

The film is a direct-to-DVD mockbuster intended to capitalize upon the Warner Brothers film of the same name directed by Guy Ritchie, and is the second film by The Asylum to be inspired by the writings of Arthur Conan Doyle, the first being King of the Lost World. The film was shot primarily in Caernarfon, Wales on a low budget. The Asylum had previously used the same locations to film Merlin and the War of the Dragons. Syfy have since acquired the television rights of the film.