This is a compilation of 24 Australia Guinness records in 2005. You may want to take a look at our complete list of Australia Guinness Records broken down by year.
| When | Record name | What | Who |
|---|---|---|---|
| 10 December 2005 | Longest line of footprints | 15200/4484 people | The West Australian Newspapers Ltd |
| 11 November 2005 | Highest bungee jump, tandem | Grant Denyer, AJ Hackett | |
| November 2005 | Farthest 6 days ultra distance (men) | 1,036.80 kilometre(s) | Yiannis Kouros |
| 01 November 2005 | Longest human conveyor belt | All Saints Anglican School | |
| 31 October 2005 | Most cows killed by lightning | 68 total number | Warwick Marks |
| 21 September 2005 | Largest opal doublet | Paul Christensen | |
| 10 September 2005 | Longest marathon skiing | 202/1 hour(s):minute(s) | Nicholas Willey |
| 27 August 2005 | Fastest morse code, sent and received | 1/8 minute(s):second(s) | Ray Carter and Les Edwards |
| 27 August 2005 | Fastest VW Beetle engine swap | 1/6 minute(s):second(s) | Stephen Muller, Adrian Muller, Julian Price-Jones, Jeremy Vant Spyker |
| 24 August 2005 | Farthest distance travelled in 24 hours on a 50cc scooter | 928 kilometre(s) | Mark Brown |
| 16 August 2005 | Most pine boards broken (one minute) | Glenn Coxon | |
| 13 August 2005 | Longest duration ride on a mechanical rodeo | 2/15 minute(s):second(s) | Nigel Medley |
| 22 July 2005 | Longest dive by a pig | 3.31 metre(s) | Tom Vandeleurs |
| 18 June 2005 | Longest time to spin a golf ball on a putter | 2/22 minute(s):second(s) | Henry Epstein |
| 04 June 2005 | Highest unicycle platform drop | Alex Toms | |
| 26 May 2005 | Largest tea party (multiple venues) | 280246 people | The Cancer Council NSW |
| 15 May 2005 | Fastest wheelbarrow race - 100 m | 14 second(s) | Otis Gowa |
| 14 May 2005 | Longest Motorcycle Superman Seat Grab Jump | Robbie Maddison | |
| 08 May 2005 | Fastest softball pitch (female) | 111 kilometre(s) per hour | Zara Mee |
| 17 April 2005 | Most plates smashed in 30 seconds | 86 total number | Con Damouras |
| 07 April 2005 | Largest Turkish Delight | 3.21 tonne(s)/metric ton(s) | Ediz Pektuzun |
| 30 March 2005 | Youngest TV presenter | Luis Tanner | |
| 15 March 2005 | Longest throw - no tail | David Schummy | |
| 2005 | Tallest AFL player | 211 centimetre(s) | Aaron Sandilands |