House M.D. is primarily inspired by which famous fictional detective?

House M.D. is primarily inspired by the fictional detective Sherlock Holmes.

Both characters solve seemingly impossible cases through close observation, deductive reasoning, and a willingness to challenge conventional explanations. Dr. Gregory House's surname also echoes Holmes's name, and the show's mysteries often present symptoms as clues in a detective investigation.

The parallels extend to supporting characters. James Wilson functions partly as House's version of Dr. John Watson, while House's apartment number, 221B, references Holmes's famous London address in many stories.

House M.D. does not simply retell the Holmes stories: it transfers their investigative structure into a modern medical setting. The series therefore combines hospital drama with the traditions of detective fiction.