John

John may refer to:
==Characters==
* John House - House's dad, played by R. Lee Ermey
* John Henry Giles - A paralyzed jazz musician in DNR, portrayed by Harry J. Lennix
* John (clinic patient) - A patient who sleeps on his arm, from Que Será Será, portrayed by Cooper Thornton
* John Kelley - An ex-marine suffering from chronic fatigue who House sees in a dream before he meets him in the episode Top Secret, portrayed by Marc Blucas
* John (CIA Agent) - The sick agent going by the alias "John" in Whatever It Takes, portrayed by Joel Bissonnette
* John Funsten - The litigious patient in Paternity, portrayed by Alex Skuby
* John (Both Sides Now) - A minor character in Both Sides Now, played by Richard Sabine
* John Taylor - a deceased 8 year old former patient of Wilson's, seen as a hallucination in The C Word, portrayed by Gabriel Suttle
* John Clift - a minor character in Acceptance, portrayed by Michael Dietz
* Johnny - one of the special needs students in Big Baby, portrayed by Andy Scott Harris
==Actors==
*John Prosky - The actor who portrayed Dr. Bergin in The Socratic Method
*John Patrick Amedori - The actor who portrayed Matt Davis in Poison
*John Cho - The actor that plays Harvey Park in Love Hurts
*John Rubinstein - The actor that portrays Dr. Ayersman in The Mistake
*John Lafayette - The actor that portrays Dr. Schisgal in The Mistake
*Johnny Sneed - The actor that portrays Todd Green in Cane & Able
*Johnny Crear - The actor who portrays clinic patient Thomas Williams in Lines in the Sand
*John Larroquette - The actor who portrayed coma guy Gabriel Wozniak in Son of Coma Guy
*John Bobek - The actor who portrayed Student Two in Human Error
*John Bain - The actor who portrayed Jack Cannon in Unwritten
*John Forest - The actor who portrayed Geoff in Joy to the World
*John Kapelos - The actor who portrayed Dr. Kurtz in Locked In
*John Lacy - The actor who portrayed Dr. Dave Thomas in 5 to 9
*John T. Woods - The actor who portrayed Tony, the ex-boyfriend of Dr. Wendy Lee in The Fix
*John Scurti - The actor who portrayed "diabetic" clinic patient Monroe in Parents
*John Gloria - The actor who portrayed Calvin Ayres, House's immigration lawyer in Man of the House
* John Berg - The actor who portrayed Dr. Prather in Babies & Bathwater
* John Tremaine - The actor who portrayed a Patient in Merry Little Christmas
==Locations==
*Johns Hopkins Medical School - A genuine medical school that is given as Eric Foreman's alma matter and the place Gregory House was expelled from.
==Crew==
*John C. Kelley - one of the show's writers
* John Mankiewicz - one of the show's writers
* John F. Showalter - who directed the episode House vs. God