Geoffrey, Geoffroy, Jeffrey, Geoff, Jeff, etc. may refer to:

People with the surname Geoffroy:

  • Geoffroy (surname)

People with the given name Geoffrey, Jeffrey, Jeff, etc.:

  • Geoffrey (given name)

People with Geoffrey as the full name:

  • Geoffrey of Monmouth, clergyman and one of the major figures in the development of British history
  • Geoffrey I of Anjou (died 987)
  • Geoffrey II of Anjou (died 1060)
  • Geoffrey III of Anjou (died 1096)
  • Geoffrey IV of Anjou (died 1106)
  • Geoffrey V, Count of Anjou (1113–1151), father of King Henry II of England
  • Geoffrey II, Duke of Brittany (1158–1186), one of Henry II's sons
  • Geoffrey, Archbishop of York (c. 1152–1212)
  • Geoffroy du Breuil of Vigeois, 12th century French chronicler
  • Geoffroy de Charney (died 1314), Preceptor of the Knights Templar
  • Geoffroy IV de la Tour Landry (c. 1320–1391), French nobleman and writer
  • Geoffrey the Baker, (died c. 1360), English historian and chronicler
  • Geoffrey Shindler OBE (1942-) Vice President of Lancashire County Cricket Club and Former Chairman of the Manchester Camarata

In fiction:

  • Geoffrey Butler, a character on the NBC sitcom The Fresh Prince of Bel-Air
  • The name of the Lorax in the movie The Lorax
  • Geoffrey the Giraffe, Toys "R" Us mascot
  • Jeff (EarthBound), a character in the video game EarthBound
  • Mutt and Jeff (comic strip)
  • Geoff, a character from the cartoon Total Drama Island
  • Geoff (Greyhawk), a land in the fictional World of Greyhawk Dungeons & Dragons campaign setting
  • In the movie Get Him to the Greek, a geoffrey is drug culture slang for a type of joint that is laced with a variety of hard drugs.
  • Geoffrey Jellinek (pronounced "joff-ree") on Strangers with Candy