The 1984 UK Championship (officially the 1984 Coral UK Championship) was a ranking professional snooker tournament that took place at the Guild Hall in Preston, England, between 18 November and 2 December 1984.

The defending champion was Alex Higgins who won the 1983 event after defeating Steve Davis 16–15 in the final.

[3] The highest break of the tournament was a 135 made by Jack McLaughlin during the non-televised stages; the highest break of the televised stages was a 134 made by Davis.

[4] The breakdown of prize money for this year is shown below: The tournament featured 32 players.

[5][6] Round of 32 Best of 17 frames Alex Higgins 9–7 Tony Jones Bill Werbeniuk 1–9 Rex Williams Willie Thorne 9–7 John Parrott Eddie Charlton 9–4 Silvino Francisco Cliff Thorburn 9–4 Jack McLaughlin Terry Griffiths 6–9 Cliff Wilson David Taylor 9–6 Murdo MacLeod Ray Reardon 9–2 Danny Fowler Kirk Stevens 9–7 Tony Chappel John Spencer 6–9 Joe Johnson Tony Knowles 9–5 Marcel Gauvreau Dennis Taylor 9–6 Warren King Jimmy White 9–5 John Campbell Doug Mountjoy 9–2 Mike Hallett Steve Davis 9–1 Tommy Murphy Tony Meo 9–4 Eugene Hughes A total of 28 century breaks were made during the tournament.