1985 (releases)

January

 * January - DWM 97 was published.
 * 3 January - A Call from the Master was first broadcast on BBC1.
 * 5 January - Attack of the Cybermen Part One debuted on BBC1.
 * 12 January - Attack of the Cybermen Part Two debuted on BBC1.
 * 19 January - Vengeance on Varos Part One debuted on BBC1.
 * 26 January - Vengeance on Varos Part Two debuted on BBC1.

February

 * 2 February - The Mark of the Rani Part One debuted on BBC1.
 * 7 February - DWM 98 was published.
 * 9 February - The Mark of the Rani Part Two debuted on BBC1.
 * 14 February - Doctor Who - Planet of Fire was first published.
 * 16 February - The Two Doctors Part One debuted on BBC1.
 * 23 February - The Two Doctors Part Two debuted on BBC1.
 * 23 February - A Fix with Sontarans debuted on BBC1 as a segment of Jim'll Fix It.

March

 * March - DWM 99 was published.
 * 2 March - The Two Doctors Part Three debuted on BBC1.
 * 9 March - Timelash Part One debuted on BBC1.
 * 14 March - Doctor Who - The Caves of Androzani was first published.
 * 15 March - "Doctor in Distress", a single recorded by cast members of Doctor Who to raise money for charity and to call upon the BBC not to cancel the series, was released in the UK.
 * 16 March - Timelash Part Two debuted on BBC1.
 * 23 March - Revelation of the Daleks Part One debuted on BBC1.
 * 30 March - Revelation of the Daleks Part Two debuted on BBC1.

April

 * April - Severn House published Doctor Who Book of Space, a hardcover version of Doctor Who Quiz Book of Space aimed at libraries.
 * 4 April - DWM 100 was published.
 * 11 April - Doctor Who - Marco Polo was first published.

May

 * 9 May - Puzzle Book was published.
 * 9 May - DWM 101 was published.
 * 16 May - REF: The Doctor Who Cookbook was first published.
 * 16 May - REF: The Doctor Who Monster Book was republished nearly ten years after its first issue.
 * 30 May - REF: Doctor Who: The TARDIS Inside Out was first published.
 * Doctor Who 1985 Summer Special Classic, a reprinting of Doctor Who Magazine comic strips, was published by Marvel Comics.

June

 * June - DWM 101 was published.
 * 13 June - Doctor Who - The Awakening was first published.
 * 13 June - DWM 102 was published.
 * Mid-June - An original Doctor Who radio play, Slipback, was recorded for BBC Radio, with Colin Baker and Nicola Bryant reprising their roles.

July

 * Summer - Doctor Who Summer Special 1985 was published.
 * July - Severn House published Doctor Who Book of Science, a hardcover version of Doctor Who Quiz Book of Science aimed at libraries.
 * July - DWM 103 was published.
 * 11 July - Doctor Who - The Mind of Evil was first published.
 * 25 July - Slipback Parts One and Two were first broadcast on BBC Radio.

August

 * August - The Doctor Who Annual 1986 was published.
 * August - DWM 104 was published.
 * 8 August - Slipback Parts Three and Four were first broadcast on BBC Radio.
 * 22 August - Slipback Parts Five and Six were first broadcast on BBC Radio.

September

 * 12 September - Doctor Who - The Myth Makers was first published.
 * 12 September - REF: The Doctor Who Illustrated A to Z was first published.
 * 12 September - DWM 105 was published.
 * The US edition of REF: Doctor Who: The TARDIS Inside Out was published.

October

 * 3 October - The Lenny Henry Show sketch was first transmitted on BBC1.
 * 10 October - Doctor Who - The Invasion was first published.
 * 10 October - DWM 106 was published.
 * 14 October - REF: The Third Doctor Who Quiz Book by Nigel Robinson was first published.
 * 31 October - REF: Doctor Who: Timeview was first published.

November

 * Winter - Doctor Who Magazine Winter Special 1985 was published.
 * November - DWM 106 was published.
 * 14 November - Doctor Who - The Krotons was first published.
 * 14 November - DWM 107 was published.
 * 22 November - Numerous Doctor Who actors reunited for a special appearance during the annual Children in Need appeal.

December

 * 5 December - Doctor Who - The Two Doctors was first published.
 * 12 December - DWM 108 was published.

Unknown dates

 * Space Invaders was first broadcast.
 * Doctor Who and the Warlord was first published.
 * Doctor Who and the Mines of Terror was first published for the BBC Micro.