| Strongest beer ever sold | 55 percentage | BrewDog |
| Largest predatory fish | | White shark |
| Smallest muscle | 0.127 millimetre(s) | stapedius muscle |
| Most poisonous fungus | 90 percentage | Amanita phalloides |
| Smallest scale three dimensional map | | Merrifield |
| Longest animal | | bootlace worm |
| Largest owl | | Eagle owl (Bubo bubo) |
| Longest serving newspaper columnist | | Jack Ingram |
| Not applicable | Largest mammal | 190 tonne(s)/metric ton(s) | Blue whale |
| Oldest road race | | Red Hose 5 Mile Race |
| First true insect | | Rhyniognatha hirsti |
| 319 mya BC | First wildfire | first first | Cardiff University |
| Largest concentration of asteroids | 700,000–1,700,000 total number | Orbits of Mars and Jupiter |
| First hypertext browser | | Tim Berners-Lee |
| Greatest impact on Earth | ranked #1 ranked #1 | Mars colliding with the Earth 4.5 billion years ago |
| 122 | Longest ancient Roman wall | 118 kilometre(s) | Hadrian’s Wall |
| Oldest masonic lodges | | Aitchison's Lodge |
| First TV police detective | first | Inspector Holt |
| Longest serving executioner | 45 year(s) | Unknown |
| First use of gas warfare | first first | Unknown |
| Fastest approaching galaxy | 419 total number | M86 |
| Most 10-wicket hauls in an innings (male) | 10 total number | Alfred 'Tich' Freeman |
| Youngest planetary nebula | ranked #1 ranked #1 | Stingray Nebula |
| 800 | First indoor clock | | Candle clock |
| Most expensive man-made object | 100000000000 US dollar(s) | International Space Station |
| Smallest snowman | | Snowman created by the National Physical Laboratory |
| Slot car distance 24 hours, 1:32 scale | | North London Society of Model Engineers |
| Largest litter - domestic cat | | Unknown |
| English word with the most meanings | | Set |
| First known turtle with a complete shell | first first | Proganochelys |
| Largest prehistoric mammal | 11.27/5.41 dimension(s) | Unknown |
| Slowest selling book | | David Wilkins translation of New Testament |
| First drive around the world (female) | 29 December 1922 to January 1927 first | Aloha Wanderwell |
| Longest marathon playing five-a-side football (soccer) | 70 hours 3 minutes hour(s):minute(s):second(s) | Lee Knight Foundation |
| Most football (soccer) Premier League goals | | Alan Shearer |
| Largest deer | 2.34/816 metre(s) | Unknown |
| First full-page illustrated advertisement | 1842/7/10 first | Unknown |
| Largest turkey farm | | Bernard Matthews plc |
| Most baked beans eaten with chopsticks in one minute | 71 total number | Cherry Yoshitake |
| Oldest Rugby Union competition | | United Hospitals Cup |
| First British videogame to make the ELSPA Award Million Seller list | first | Grand Theft Auto III (Rockstar Games, 2001) |
| Fastest crocodile on land | 17 kilometre(s) per hour | Unknown |
| Largest chelonian | 1.83–2.13 metre(s) | Unknown |
| Most countries to have gained independence from the same country | 20 percentage | Unknown |
| First animal cloned from an adult cell | first | Dolly |
| First land animal | | Pneumodesmus newmani |
| Most venomous mollusc | ranked #1 | Unknown |
| Most rivets | | John Moir |
| Largest feline carnivore | | Panthera tigris altaica (Siberian tiger) |
| Vehicle engine with the most cylinders | | Simon Whitelock |
| First drone launched by winking | n/a first | Katia Vega |
| Most successful predator | 50 – 70 percentage | African hunting dog, African painted dog |
| First NHL regular season match played in Europe | first | Unknown |
| Oldest football | | Stirling Castle |
| Most currencies featuring the same individual | 35 total number | Queen Elizabeth II |
| Most somersaults on a Korean Cradle in one minute | 14 total number | Roisin Morris, Massimiliano Rossetti |
| Largest gun on a submarine | 30.48 centimetre(s) | M Class submarines |
| First full-page advert | 1829/01/01 first | Unknown |
| Tallest mountain in the Solar System | 25 kilometre(s) | Olympus Mons, Mars |
| Most geologically active inner planet | 1,500 total number | Earth |
| Most dangerous cheese | | Casu Marzu |
| Largest robotic arm in space | 17.5/1641 dimension(s) | Unknown |
| Fastest growing plant | 0.00003 kilometre(s) per hour | Bamboo plant |
| Nearest bright planetary nebula | 700 light year(s) | Helix Nebula (also known as NGC 7293) |
| First fees for classifieds | 1707/1/28 first | Unknown |
| First illustrated advert | | Unknown |
| First female tv cop star (UK) | first | Jill Gascoigne |
| Telephone - largest | | Unknown |
| First fossil reptile | 340000000 first | Westlothiana lizziae 'Lizzie the Lizard' |
| Oldest complete cutlery set | | Altenstetter Service |
| Greatest mouser | | Unknown |
| Longest embroidery | 937 metre(s) | Margaret S Pollard |
| Farthest mountain peak from Earth's centre | 6,310 metre(s) | Mt Chimborazo |
| First trade advert | 1703/3/17 first | Unknown |
| Most varieties of sausage commercially available (retail location) | 83 total number | Unknown |
| Best-selling book of non-fiction | 5000000000 unit(s) sold | The Bible |
| Longest drop kick, Rugby Union | | Unknown |
| First public electric railway still in operation | 1883/8/4 first | Volk's Electric Railway Association |
| First videogame to use GOAL programming language | first first | Jak and Daxter |
| Longest submarine mountain range | 65,000 kilometre(s) | The Mid-Ocean Ridge |