Oliver

 has many meanings within and without the Doctor Who universe and the real world. They are listed alphabetically by surname.

As only name

 * Oliver, a security guard. (COMIC: The Purrfect Crime)
 * Oliver, a farmer (AUDIO: The Rings of Ikiria)
 * Oliver, a seventeen-year-old boy (PROSE: Special Weapons)

As first name

 * Oliver Barnes, an elderly man and member of Silver Cloak. (TV: The End of Time)
 * Oliver Blazington, a hunter. (AUDIO: The Eye of the Jungle)
 * Oliver Charles, a British politician. (TV: Aliens of London)
 * Oliver Chen, a mechanic. (PROSE: The Badblood Diaries)
 * Oliver Cromwell, the leader of the English army in Ireland in September 1649.
 * Oliver Davis, a boy in Victorian London. (AUDIO: A Spoonful of Mayhem)
 * Oliver Day, a companion of the Fourth Doctor.
 * Oliver Goldsmith, a poet. (AUDIO: Plague of the Daleks)
 * Oliver Guide, a banker. (AUDIO: Children of Steel)
 * Oliver Hamilton, a British Army officer.
 * Oliver Harper, a companion of the First Doctor.
 * Oliver Harrington, a deceased friend of Martha Jones. (AUDIO: Lost Souls)
 * Oliver Lethbridge, Major General. (PROSE: As the Son Falls)
 * Oliver Malf, an actor. (PROSE: A Device of Death)
 * Oliver Marks, a World War II veteran. (PROSE: The Glamour Chase)
 * Oliver Morgenstern, a medical student. (TV: Smith and Jones)
 * Oliver Mortlake, a professor. (AUDIO: The Darkness of Glass)
 * Oliver Norman, a student. (PROSE: The Birthday Party)
 * Oliver Redfern, a deceased soldier. (TV: Human Nature)
 * Oliver Reed, an actor.

Other

 * Oliver Bainbridge Functional Stabilisation Centre
 * Oliver Twist, a book by Charles Dickens

As first name

 * Oliver Ager, a production accountant for Doctor Who
 * Oliver Barry-Brook, an actor who played Kelvin in The Caretaker
 * Oliver Benson, an art department assistant
 * Oliver Bradshaw, a voice actor
 * Oliver Clement, a voice actor
 * Oliver Coopersmith, a voice actor
 * Oliver Cotton, a voice actor
 * Oliver Dimsdale, a voice actor
 * Oliver Elmes, a graphic designer
 * Oliver Ferriman, an actor who played Jonah Bevan in TV: Adrift
 * Oliver Gilbert, a voice actor who voiced the Daleks in TV: Day of the Daleks
 * Oliver Hopkins, an actor
 * Oliver Hume, a voice actor for Big Finish Productions
 * Oliver Jackson, a voice actor
 * Oliver Lansley, a voice actor
 * Oliver Maguire, who played an Shrieve in TV: The Ribos Operation
 * Oliver Mason, a voice actor
 * Oliver Mellor, an actor who played Matt Crane in TV: Army of Ghosts
 * Oliver Senton, a voice actor
 * Oliver Smith, an actor who played Drak in TV: The Twin Dilemma

As Last name

 * Sean Oliver, an actor who played Stuart in TV: Survival