What is the first name of House M.D.’s lead doctor, House?

The first name of House M.D.’s lead doctor is Gregory.

Dr. Gregory House is the series’ central character and the head of Diagnostic Medicine at Princeton-Plainsboro Teaching Hospital. His unusual ability to identify rare diseases is paired with a hostile bedside manner, chronic leg pain, and reliance on Vicodin during much of the series.

The character’s full name is Gregory House, and he is usually called simply “House” by colleagues and patients. The name echoes Sherlock Holmes: both characters are brilliant investigators who solve difficult cases through deduction, observation, and unconventional methods. The connection also appears in smaller details, including House’s apartment number and musical references.

Gregory is sometimes confused with the first names of other major doctors. James Wilson is House’s closest friend, Eric Foreman is a member of his diagnostic teams, and Robert Chase is another longtime colleague. None of those names identifies House himself.