This is a compilation of 44 United Kingdom Guinness records in 2003. You may want to take a look at our complete list of United Kingdom Guinness Records broken down by year.
| When | Record name | What | Who |
|---|---|---|---|
| 19 December 2003 | Most theatrical members of a family to appear on stage | 24 people | The Hurst family |
| November 2003 | Longest sloop | Mirabella V | |
| November 2003 | Oldest goat ever | 22/5 year(s):day(s) | McGinty |
| 20 October 2003 | Shortest stuntman | Kiran Shah | |
| 30 September 2003 | Most skips on a tightrope in one minute | 211 total number | Henry Ayala |
| 27 September 2003 | Most straitjacket escapes in 8 hours | 193 total number | James Peters |
| 26 September 2003 | Largest coffee party (multiple venues) | 576157/26000 people | Macmillan Cancer Relief |
| 26 September 2003 | Largest longsword dance display | 186 people | Halifax schools |
| 20 September 2003 | Oldest royal | Princess Alice | |
| 18 September 2003 | Most consecutive somersaults on a trampoline | 3333 total number | Brian Hudson |
| September 2003 | Golf ball control, two clubs - duration | 59/58 minute(s):second(s) | Gauldino Guerreiro |
| 27 August 2003 | Most sweetcorn kernels eaten in 3 minutes using a cocktail stick | 236 total number | Ian Richard Purvis |
| 22 August 2003 | Youngest hat-trick scorer in football (women) | Amy Wilding | |
| 20 August 2003 | Oldest British Royal | 102/309 year(s):day(s) | Princess Alice |
| 02 August 2003 | Fastest speed for a motorcycle ridden blindfolded | 265.33 kilometre(s) per hour | Billy Baxter |
| 31 July 2003 | Highest jump by an insect | 70 centimetre(s) | Froghopper (Philaenus spumarius) |
| 29 July 2003 | Oldest school crossing patrol officer/guard (lollipop person) | 1920/7/16 year(s):day(s) | Bridie Dillon MBE |
| 27 July 2003 | Largest robotic telescope | Unknown | |
| 27 July 2003 | Penny farthing stack | 131 people | British Ordinary Enthusiasts |
| 20 July 2003 | Largest military air show | Royal international Air Tattoo | |
| 16 July 2003 | Largest amateur puppet show | 402 people | Cockington Primary School |
| 13 July 2003 | Longest marathon playing ring-board | Joe Norman, Robert Norman, Paul Harkes, Faye Savill, Marion Daly, Betty Murphy, Hazel Gannon, Denis Curtis | |
| 06 July 2003 | Oldest Wimbledon Champion | Martina Navratilova | |
| 25 June 2003 | Oldest topiary garden | Levens Hall | |
| 24 May 2003 | Youngest player to hit six sixes off one over (male) | 13/261 year(s):day(s) | Anthony McMahon |
| 30 April 2003 | First manmade plastic | first | Unknown |
| 30 April 2003 | First magnifying glass | first | Unknown |
| 13 April 2003 | Fastest marathon (female) | 02:15:25 hour(s):minute(s):second(s) | Paula Radcliffe |
| 13 April 2003 | Fastest time to run the London Marathon (female) | 2/15/25 hour(s):minute(s):second(s) | Paula Radcliffe |
| 05 April 2003 | Most blood pressure readings taken in 24 hours (multiple location) | 127573 people | Rotary International in Great Britain and Ireland, The Stroke Association |
| 24 March 2003 | Largest collection of photographs of professional sporting personalities | 510 total number | Thomas Gill, Thomas Gill |
| 21 March 2003 | Longest continual TV subtitling (live) | BBC Broadcast Subtitling Unit | |
| 02 March 2003 | Fastest half marathon three legged | 1/37/53 hour(s):minute(s):second(s) | Nick Benbow, Alastair Benbow |
| 27 February 2003 | Youngest person to row the Indian Ocean (male) | 30:168 year(s):day(s) | Simon Chalk |
| 20 February 2003 | Oldest winner of a BRIT award | Tom Jones | |
| 17 February 2003 | Smallest colour television screen | Microemissive Displays Ltd | |
| 10 February 2003 | First use of infrared equipment in battle | Sniperscope | |
| 29 January 2003 | Longest running scientific experiment | Broadbalk Experiment | |
| 06 January 2003 | Largest plesiosaur | 25 metre(s) | Unknown |
| January 2003 | Longest career as a television naturalist | Sir David Attenborough | |
| January 2003 | Largest vertical blinds | Hillarys Blinds | |
| 2003 | Most air miles flown by a passenger | Fred Finn | |
| 2003 | Largest model railway engine | Thomas & Friends | |
| 2003 | Most Tony Awards won for Best Actor in a play | 2 total number | José Ferrer , Alan Bates, Brian Dennehy, Judd Hirsch, James Earl Jones, Frederic March |