Geoffrey

 appears several times in the Doctor Who universe and the relevant real world. They are listed below in alphabetical order by surname. If no surname is available, alphabetization occurs by the disambiguation term — that is, the bit between the parentheses in a title like Waitress (Vincent and the Doctor).

As first name

 * Geoffrey Baxter (TV: The Christmas Invasion)
 * Geoffrey de Beauvain (COMIC: The Magician)
 * Geoff Bickerstaff (AUDIO: The Nightmare Fair)
 * Geoff Bluth (PROSE: Attack of the Snowmen)
 * Geoffrey Chaucer (PROSE: Cat's Cradle: Time's Crucible)
 * Geoff D'Amato (PROSE: Parasite)
 * Geoff Evans (AUDIO: Black Thursday)
 * Geoffrey Greystone (PROSE: 64 Carlysle Street)
 * Geoff Noble (TV: The Runaway Bride)
 * Geoffrey Plum (GAME: The Gunpowder Plot)

Actors

 * Geoffrey Bateman
 * Geoffrey Bayldon
 * Geoffrey Beevers
 * Geoffrey Breton
 * Geoffrey Colville
 * Geoffrey Frederick
 * Geoffrey Hinsliff
 * Geoffrey Hughes
 * Geoffrey Leesley
 * Geoffrey Morris
 * Geoffrey Palmer
 * Geoff Searle
 * Geoffrey Todd
 * Geoffrey Toone

Writers

 * Geoffrey Orme

Directors

 * Geoffrey Sax
 * Geoff Shaw

Video and audio editors

 * Geoffrey Botterill
 * Geoffrey Burgon
 * Geoffrey Cheshire

Designers

 * Geoffrey Kirkland
 * Geoff Powell

Cartoonist

 * Geoff Senior