Here are all the number-one box office movies to come out of the year 1980 in the United Kingdom. Most gross figures represent "an approximation" by 25th Frame. [1]
| † | This implies the highest-grossing movie of the year. [2] |
| Date | Title | Studio | Gross | Ref |
|---|---|---|---|---|
| 5 January 1980 | Star Trek: The Motion Picture | Paramount Pictures | £649,202 | [3] |
| 12 January 1980 | Apocalypse Now | Omni Zoetrope | £595,211 | |
| 19 January 1980 | Life of Brian | HandMade Films & Python (Monty) Pictures | £898,403 | |
| 26 January 1980 | £345,211 | |||
| 2 February 1980 | Escape from Alcatraz | The Malpaso Company | £196,807 | |
| 9 February 1980 | £405,203 | |||
| 16 February 1980 | 10 | Orion Pictures | £860,920 | |
| 23 February 1980 | £344,368 | |||
| 1 March 1980 | £137,747 | |||
| 8 March 1980 | £55,099 | |||
| 15 March 1980 | £625,841 | |||
| 22 March 1980 | The Electric Horseman | Universal Pictures, Columbia Pictures, Wildwood Enterprises, & Rastar Films | £838,598 | |
| 29 March 1980 | Kramer Vs. Kramer | Stanley Jaffe Productions | £832,165 | |
| 5 April 1980 | £328,949 | |||
| 12 April 1980 | £103,216 | |||
| 19 April 1980 | £38,598 | |||
| 26 April 1980 | £582,189 | |||
| 3 May 1980 | £277,233 | |||
| 10 May 1980 | £363,899 | |||
| 17 May 1980 | American Gigolo | Paramount Pictures | £214,058 | |
| 24 May 1980 | £1,025,796 | |||
| 31 May 1980 | Star Wars: The Empire Strikes Back † | Lucasfilm Ltd. | £1,038,162 | |
| 7 June 1980 | £1,094,358 | |||
| 14 June 1980 | £1,105,000 | |||
| 21 June 1980 | £1,022,538 | |||
| 28 June 1980 | £1,072,151 | |||
| 5 July 1980 | £861,342 | |||
| 12 July 1980 | £579,197 | |||
| 19 July 1980 | £375,265 | |||
| 26 July 1980 | £332,178 | |||
| 2 August 1980 | £184,543 | |||
| 9 August 1980 | £646,091 | |||
| 16 August 1980 | Airplane! | Paramount Pictures & Howard W. Koch Productions | £638,409 | |
| 23 August 1980 | £204,569 | |||
| 30 August 1980 | £53,641 | |||
| 6 September 1980 | £25,266 | |||
| 13 September 1980 | McVicar | The Who Films Ltd. & Polytel | £730,516 | |
| 20 September 1980 | Cruising | CiP-Europaische Treuhand & Lorimar Film Entertainment | £630,395 | |
| 27 September 1980 | £331,787 | |||
| 4 October 1980 | Dressed to Kill | Cinema 77/Film Group | £709,762 | |
| 11 October 1980 | The Shining | The Producer Circle Company, Peregrine Productions, & Hawk Films | £853,838 | |
| 18 October 1980 | £777,869 | |||
| 25 October 1980 | The Elephant Man | Brooksfilms | £545,805 | |
| 1 November 1980 | £615,179 | |||
| 8 November 1980 | Caligula | Penthouse Films International | £391,937 | |
| 15 November 1980 | £212,865 | |||
| 22 November 1980 | £125,215 | |||
| 29 November 1980 | £73,656 | |||
| 6 December 1980 | £43,327 | |||
| 13 December 1980 | £430,646 | |||
| 20 December 1980 | Flash Gordon | Starling Productions & Famous Films | £1,097,984 | |
| 27 December 1980 | £995,783 |