This is a list of films which have placed number one at the weekend box office in the United Kingdom during 1998.
| † | This implies the highest-grossing movie of the year. [1] |
| # | Weekend End Date | Film | Box Office | Notes | Ref |
|---|---|---|---|---|---|
| 1 | January 4, 1998 | Starship Troopers | £2,221,631 | [2] | |
| 2 | January 11, 1998 | The Jackal | £1,422,193 | [3] | |
| 3 | January 18, 1998 | The Devil's Advocate | £1,213,771 | [4] | |
| 4 | January 25, 1998 | Titanic † | £4,805,270 | Titanic set a record opening for January beating Bram Stoker's Dracula 's £2.6 million | [5] [6] |
| 5 | February 1, 1998 | £4,773,404 | [7] | ||
| 6 | February 8, 1998 | £4,274,375 | |||
| 7 | February 15, 1998 | £3,849,120 | |||
| 8 | February 22, 1998 | £3,657,613 | |||
| 9 | March 1, 1998 | £3,403,199 | |||
| 10 | March 8, 1998 | £3,010,921 | |||
| 11 | March 15, 1998 | £2,469,191 | |||
| 12 | March 22, 1998 | £1,953,082 | |||
| 13 | March 29, 1998 | £2,223,046 | |||
| 14 | April 5, 1998 | £1,504,551 | |||
| 15 | April 12, 1998 | £1,373,363 | |||
| 16 | April 19, 1998 | £981,940 | |||
| 17 | April 26, 1998 | U.S. Marshals | £780,012 | ||
| 18 | May 3, 1998 | Scream 2 | £2,493,950 | ||
| 19 | May 10, 1998 | £1,213,184 | |||
| 20 | May 17, 1998 | Deep Impact | £1,763,805 | ||
| 21 | May 24, 1998 | £1,601,651 | |||
| 22 | May 31, 1998 | £1,070,805 | |||
| 23 | June 7, 1998 | The Wedding Singer | £1,031,660 | ||
| 24 | June 14, 1998 | £974,719 | |||
| 25 | June 21, 1998 | City of Angels | £1,141,654 | ||
| 26 | June 28, 1998 | £674,705 | |||
| 27 | July 5, 1998 | Six Days Seven Nights | £908,713 | ||
| 28 | July 12, 1998 | £706,928 | |||
| 29 | July 19, 1998 | Godzilla | £4,176,960 | ||
| 30 | July 26, 1998 | £2,145,088 | |||
| 31 | August 2, 1998 | Lost in Space | £3,127,079 | ||
| 32 | August 9, 1998 | Armageddon | £2,732,785 | ||
| 33 | August 16, 1998 | £2,243,095 | |||
| 34 | August 23, 1998 | The X-Files | £2,506,148 | ||
| 35 | August 30, 1998 | £1,192,131 | |||
| 36 | September 6, 1998 | Lock, Stock and Two Smoking Barrels | £1,147,448 | ||
| 37 | September 13, 1998 | Saving Private Ryan | £2,704,522 | ||
| 38 | September 20, 1998 | £2,077,362 | |||
| 39 | September 27, 1998 | There's Something About Mary | £2,076,411 | ||
| 40 | October 4, 1998 | £2,026,662 | |||
| 41 | October 11, 1998 | The Truman Show | £2,210,999 | ||
| 42 | October 18, 1998 | £1,687,037 | |||
| 43 | October 25, 1998 | Small Soldiers | £1,137,725 | ||
| 44 | November 1, 1998 | The Exorcist | £2,186,977 | ||
| 45 | November 8, 1998 | Antz | £1,650,562 | ||
| 46 | November 15, 1998 | £1,737,782 | |||
| 47 | November 22, 1998 | £1,357,591 | |||
| 48 | November 29, 1998 | £978,414 | |||
| 49 | December 6, 1998 | Rush Hour | £1,809,093 | ||
| 50 | December 13, 1998 | £1,179,123 | |||
| 51 | December 20, 1998 | £744,783 | |||
| 52 | December 27, 1998 | Enemy of the State | £1,420,216 | ||
$3,642,018; $1=£0.61
$2,297,565; $1=£0.619
$1,986,532; $1=£0.611
$7,971,904; $1=£0.603
$7,799,680; $1=£0.612