The famous detective created by Arthur Conan Doyle is **Sherlock Holmes**. First introduced in the novel "A Study in Scarlet" in 1887, Holmes is known for his keen observational skills, logical reasoning, and mastery of forensic science. He resides at 221B Baker Street in London, where he often solves complex mysteries with the help of his friend and chronicler, Dr. John Watson. Holmes has become an iconic figure in literature and has been featured in numerous adaptations across various media, cementing his status as one of the most renowned fictional detectives in history.