List of 2005 box office number-one films in the United Kingdom
# List of 2005 box office number-one films in the United Kingdom

This is a list of films which have placed number one at the weekend box office in the United Kingdom during 2005.

| # | Weekend End Date | Film | Total Weekend Gross |
| - | - | - | - |
| 1 | 2 January 2005 | The Incredibles | £1,296,333 |
| 2 | 9 January 2005 | White Noise | £1,787,478 |
| 3 | 16 January 2005 | Closer | £1,568,526 |
| 4 | 23 January 2005 | Closer | £1,587,136 |
| 5 | 30 January 2005 | Meet the Fockers | £7,917,661 |
| 6 | 6 February 2005 | Meet the Fockers | £4,588,360 |
| 7 | 13 February 2005 | Meet the Fockers | £2,957,466 |
| 8 | 20 February 2005 | Meet the Fockers | £1,893,131 |
| 9 | 27 February 2005 | Hide and Seek | £1,594,508 |
| 10 | 6 March 2005 | Boogeyman | £788,439 |
| 11 | 13 March 2005 | Hitch | £4,230,857 |
| 12 | 20 March 2005 | Robots | £2,622,253 |
| 13 | 27 March 2005 | Hitch | £1,660,358 |
| 14 | 3 April 2005 | The Ring Two | £2,062,792 |
| 15 | 10 April 2005 | Sahara | £1,370,577 |
| 16 | 17 April 2005 | The Interpreter | £1,589,829 |
| 17 | 24 April 2005 | The Interpreter | £1,212,734 |
| 18 | 1 May 2005 | The Hitchhiker's Guide to the Galaxy | £3,298,262 |
| 19 | 8 May 2005 | Kingdom of Heaven | £2,530,445 |
| 20 | 15 May 2005 | Kingdom of Heaven | £1,385,529 |
| 21 | 22 May 2005 | Star Wars: Episode III – Revenge of the Sith | £14,361,469 |
| 22 | 29 May 2005 | Star Wars: Episode III – Revenge of the Sith | £5,427,091 |
| 23 | 5 June 2005 | Star Wars: Episode III – Revenge of the Sith | £3,313,328 |
| 24 | 12 June 2005 | Mr. & Mrs. Smith | £3,943,422 |
| 25 | 19 June 2005 | Batman Begins | £4,427,802 |
| 26 | 26 June 2005 | Batman Begins | £2,926,042 |
| 27 | 3 July 2005 | War of the Worlds | £8,644,787 |
| 28 | 10 July 2005 | War of the Worlds | £4,219,120 |
| 29 | 17 July 2005 | Madagascar | £5,431,639 |
| 30 | 24 July 2005 | Fantastic Four | £3,541,391 |
| 31 | 31 July 2005 | Charlie and the Chocolate Factory | £7,972,168 |
| 32 | 7 August 2005 | Charlie and the Chocolate Factory | £4,441,851 |
| 33 | 14 August 2005 | Charlie and the Chocolate Factory | £2,886,352 |
| 34 | 21 August 2005 | Charlie and the Chocolate Factory | £1,691,431 |
| 35 | 28 August 2005 | The Dukes of Hazzard | £1,720,754 |
| 36 | 4 September 2005 | The 40-Year-Old Virgin | £1,757,540 |
| 37 | 11 September 2005 | The Longest Yard | £1,255,334 |
| 38 | 18 September 2005 | Pride & Prejudice | £2,529,947 |
| 39 | 25 September 2005 | Pride & Prejudice | £1,934,083 |
| 40 | 2 October 2005 | Pride & Prejudice | £1,473,062 |
| 41 | 9 October 2005 | Serenity | £958,816 |
| 42 | 16 October 2005 | Wallace & Gromit: The Curse of the Were-Rabbit | £9,374,932 |
| 43 | 23 October 2005 | Wallace & Gromit: The Curse of the Were-Rabbit | £4,666,723 |
| 44 | 30 October 2005 | Wallace & Gromit: The Curse of the Were-Rabbit | £3,593,266 |
| 45 | 6 November 2005 | Nanny McPhee | £1,656,113 |
| 46 | 13 November 2005 | In Her Shoes | £1,337,176 |
| 47 | 20 November 2005 | Harry Potter and the Goblet of Fire | £14,933,901 |
| 48 | 27 November 2005 | Harry Potter and the Goblet of Fire | £9,275,599 |
| 49 | 4 December 2005 | Harry Potter and the Goblet of Fire | £4,829,804 |
| 50 | 11 December 2005 | The Chronicles of Narnia: The Lion, the Witch and the Wardrobe | £8,884,111 |
| 51 | 18 December 2005 | King Kong | £6,944,740 |
| 52 | 25 December 2005 | The Chronicles of Narnia: The Lion, the Witch and the Wardrobe | £2,843,353 |
