The author who created the character Sherlock Holmes is Sir Arthur Conan Doyle. Introduced in the late 19th century, Holmes became a legendary figure in detective fiction, known for his keen observation, logical reasoning, and forensic skills. The character first appeared in "A Study in Scarlet," published in 1887, and has since appeared in numerous novels and short stories. Alongside his faithful companion Dr. John Watson, Holmes solves complex cases, capturing the imagination of readers and inspiring countless adaptations in film, television, and theater over the years.