House M.D. is loosely inspired by which fictional detective?

House M.D. is loosely inspired by Sherlock Holmes.

The connection appears in the central character’s methods and personality. Like Holmes, Gregory House relies on observation, deduction, unusual clues, and the elimination of seemingly plausible explanations. House’s surname also resembles “Holmes,” and his apartment number, 221B, recalls Holmes’s famous address at 221B Baker Street.

James Wilson functions in part as a Watson-like companion, while the show repeatedly uses mysteries that resemble detective cases. The inspiration is not a direct adaptation: House is a modern physician, and the series creates its own medical plots, supporting characters, and professional setting.

The title House also contributes to the wordplay, since “Holmes” and “House” have related meanings in different Germanic language traditions. These parallels are why Sherlock Holmes is the specific literary detective most closely associated with the show.