1986 (releases)

== January ==
* 9 January - Doctor Who - The Gunfighters was first published by Target Books.
* 16 January - DWM 109 was published.
== February ==
* 13 February - Doctor Who - The Time Monster was first published.
* 13 February - DWM 110 was published.
== March ==
* March - DWM 111 was published.
* 13 March - Doctor Who - The Twin Dilemma was first published.
* 27 March - Search for the Doctor and Crisis in Space, books one and two of the Make Your Own Adventure with Doctor Who line were published by Severn House.
== April ==
* 10 April - Doctor Who - Galaxy Four was first published.
* 10 April - DWM 112 was published.
== May ==
* 6 May - The Doctor Who USA Tour officially launched in the UK, prior to shipment to the United States.
* 8 May - DWM 113 was published.
* 15 May - Doctor Who - Timelash was first published.
* 15 May - Turlough and the Earthlink Dilemma was first published.
* 15 May - REF: Doctor Who: The Early Years was first published.
== June ==
* 12 June - Doctor Who - The Mark of the Rani was first published.
* 12 June - DWM 114 was published.
* Summer - Doctor Who Magazine Summer Special 1986 was published.
== July ==
* July - DWM 115 was published.
* 10 July - Doctor Who - The King's Demons was first published.
* 17 July - REF: Travel Without the TARDIS was first published.
== August ==
* August - DWM 116 was published.
* August - Marvel Comics in the United States published the 23rd and final issue of Doctor Who, a monthly series of reprints of comic strips and other material from Doctor Who Magazine.
* 14 August - The novelisation of Slipback was first published by Target Books.
* 25 August - Wogan 1986 was first broadcast on BBC One.
* 28 August - Garden of Evil and Race Against Time, books three and four of the Make Your Own Adventure with Doctor Who line, were first published by Severn House.
== September ==
* 6 September - The Mysterious Planet Part One debuted on BBC1.
* 11 September - Doctor Who - The Savages was first published.
* 11 September - Harry Sullivan's War was first published.
* 11 September - DWM 117 was published.
* 13 September - The Mysterious Planet Part Two debuted on BBC1.
* 18 September - REF: The Doctor Who File was first published.
* 20 September - The second episode of the the first series of Roland Rat: The Series debuted on BBC1
* 20 September - The Mysterious Planet Part Three debuted on BBC1.
* 27 September - The Mysterious Planet Part Four debuted on BBC1.
* 29 September - Doctor Who Collected Comics, a reprinting of several Doctor Who Magazine strips, was published by Marvel Comics.
== October ==
* October - Mission to Venus and Invasion of the Ormazoids, books five and six of the Make Your Own Adventure with Doctor Who line, were first published.
* 4 October - Mindwarp Part One debuted on BBC1.
* 9 October - DWM 118 was published.
* 11 October - Mindwarp Part Two debuted on BBC1.
* 16 October - Doctor Who - Fury from the Deep was first published.
* 18 October - Mindwarp Part Three debuted on BBC1.
* 25 October - Mindwarp Part Four debuted on BBC1.
== November ==
* Winter - Doctor Who Magazine Winter Special 1986 was published.
* November - REF: The Companions was first published.
* 1 November - Terror of the Vervoids Part One debuted on BBC1.
* 8 November - Terror of the Vervoids Part Two debuted on BBC1.
* 11 November - REF: The Doctor Who Cookbook was published in paperback.
* 13 November - DWM 119 was published.
* 15 November - Terror of the Vervoids Part Three debuted on BBC1.
* 20 November - Doctor Who - The Celestial Toymaker was first published.
* 22 November - Terror of the Vervoids Part Four debuted on BBC1.
* 29 November - The Ultimate Foe Part One debuted on BBC1.
== December ==
* December - The US edition of REF: The Companions was first published.
* December - DWM 120 was published.
* 4 December - Doctor Who - The Seeds of Death was first published.
* 6 December - The Ultimate Foe Part Two debuted on BBC1.
== Unknown dates ==
* Doctor Who and the Mines of Terror was published for the Commodore 64 and Amstrad CPC.