Sherlockiana is memorabilia and non-canonical works of fiction about the fictional detective Sherlock Holmes. Sherlockiana ranges from serious treatments of the character such as the novel The Seven-Per-Cent Solution by Nicholas Meyer, to outright parody such as the recording The Tale of the Giant Rat of Sumatra by the Firesign Theatre and Gene Wilder's The Adventure of Sherlock Holmes' Smarter Brother. Shows such as CSI will sometimes refer to Holmes or use Holmes-like imagery in their mysteries.
Charles Spencer, former theater critic for The Daily Telegraph, used the term to refer to the 2009–12 releases of the novel The House of Silk, the television series Sherlock, and the two Guy Ritchie Sherlock Holmes films (Sherlock Holmes and Sherlock Holmes: A Game of Shadows), as representative of a "golden age of Sherlockiana."
The Sherlockian game is a pastime of attempting to resolve anomalies and clarify implied details about Holmes and Watson.
Much non-canonical fiction, not written by Sir Arthur Conan Doyle, has been published that relates to these characters and their world. Characters from other fictional settings refer to the Sherlock Holmes stories as stories.
The Encyclopaedia Sherlockiana, first published in 1977 and republished as The Ultimate Sherlock Holmes Encyclopedia in 1987, is a reference text that contains an exhaustive list of over 3,500 people, places, and things associated with the universe of Sherlock Holmes.
- "Sherlockiana". The Conan Doyle Encyclopedia. Retrieved 19 November 2015.
- Huntley, Kristine (11 January 2005). "CSI Files - CSI: Crime Scene Investigation--'Who Shot Sherlock?'". CSI Files. Retrieved 19 November 2015.
- Spencer, Charles (19 December 2011). "Sherlock Holmes: we are living in a golden age of Sherlockiana". The Daily Telegraph. Retrieved 19 November 2015.
- Morley, Christopher; Steven Rothman (1990). "Notes on Baker Street". The Standard Doyle Company: Christopher Morley on Sherlock Holmes. Fordham Univ Press. pp. 68–71. ISBN 978-0-8232-1292-7.
- Tracy, Jack (1987). The Ultimate Sherlock Holmes Encyclopedia. Gramercy. ISBN 0-517-65444-X.
- The Baker Street Journal, an Irregular Quarterly of Sherlockiana
- Sherlock Holmes and Sherlockiana Collection at the Harry Ransom Center Digital Collections
- The Universal Sherlock Holmes at the University of Minnesota