Up All Night is the fourth album by Australian folk band The Waifs, first released by Jarrah in January 2003. Critics reacted more favourably to this release and it has been the band's biggest album to date.

Up All Night debuted on the Australian ARIA album chart at #3 and 12 months later had sold over 140,000 copies, garnering a double platinum accredation.

Their hard work was rewarded at the 2003 ARIA Awards where they took home 2 awards on the night (and 2 Artisan's Awards at a previous ceremony). The media celebrated with them, calling them an "overnight success 11 years in the making!".

In some parts of North America, the album was packaged with a bonus sampler of Waifs songs.