Surgeon, see surgery

Doctor (Doctor Who), the principal character of the BBC television series Doctor Who

Doctor of Traditional Chinese Medicine

Dentist, see dentistry

Valentino Rossi, Italian motorcycle racer nicknamed The Doctor

Doctor of Podiatry, see podiatrist

Physician, a medical doctor (MBChB, MBBS, MD, DO)

Doctor of Jurisprudence

Doctor (title), a title of respect. It comes to English from Old French and is the agent form of the Latin verb docere, "to teach".

Doctor of Naturopathic Medicine

Optometrist, see optometry

The Doctor, a character from Cave Story

Veterinarian, an animal doctor

Doctor (Star Trek), the holographic chief medical officer on Star Trek: Voyager

Doctor of Osteopathy (DO)

Doctor (Wildstorm), a comic book superhero

Doctor Dolittle, a classic literary character who talks to animals

The Doctors (1963 TV series), an NBC television series which aired 1963–1982

Doctor of Chiropractic

Doctor of Pharmacy

Doctors (BBC soap opera), a BBC drama series which first aired in 2000

Doc, a common abbreviation (along with "Dr.") for doctor

Doctor of Physical Therapy

The Doctor, a famous Victorian painting by Luke Fildes that shows a physician sitting at the bedside of a child

Doctor of Ministry

Doctor of Nursing Practice

The Doctor (Hellsing), a villain from the Hellsing manga

The Doctor (album), a 1986 album by Cheap Trick

Il Dottore, a figure in Italian commedia dell'arte

Doctors (novel), a 1988 novel by Erich Segal

The Doctor (film), a 1991 film starring William Hurt and Elizabeth Perkins

Doctor (band), a Canadian rock band

Doctor (children's game)

The Doctors (1969 TV series), a BBC television series from 1969–1971

Doctor of the Church, a title granted by the Roman Catholic Church to a small number of its saints.

A person who holds a research doctorate (e.g. Ph.D.) in an academic discipline

The Emacs lisp implementation of the ELIZA program.