| 2005 Triple J Hottest 100 | |
|---|---|
 Album artwork for the CD compilation | |
| Countdown details | |
| Date of countdown | 26 January 2006 |
| Countdown highlights | |
| Winning song |  Bernard Fanning"Wish You Well" |
| Most entries | Wolfmother (6 tracks) |
The 2005 Triple J Hottest 100 was announced on 26 January 2006. It was the thirteenth such countdown of the most popular songs of the year, according to listeners of the Australian radio station Triple J.
The broadcast began at 10am AEDT and finished a little before 7pm when the top song was announced. Broadcast live from the Sydney Big Day Out from 12pm AEDT, it regularly crossed to winning artists and listeners around Australia, with many listening to the broadcast as part of their Australia Day celebrations.
Voters were limited to 20 votes each – 10 via SMS (charged at 30c per message) and 10 via the Internet (at no charge).
Wolfmother had the most entries in the countdown with six, at that point the most by an artist in a single countdown. Their record was not equalled until the 2022 countdown 17 years later, by Spacey Jane, and was not surpassed until the following 2023 countdown, by G Flip.