"I Don't Remember" is a song by Australian alternative rock band Powderfinger, from the album Dream Days at the Hotel Existence. It made its radio debut on 9 July 2007 on Australian radio stations, and was subsequently released as a single and digital download on 4 August 2007 in Australia, 3 September 2007 in New Zealand, and 13 August 2007 in the United States.

The song was written by Powderfinger lead singer Bernard Fanning, and influenced by bassist John Collins. The riff was then developed by guitarist Ian Haug. The song is about reconciling difficulties and arguments, rather than shifting the blame.

"I Don't Remember" was lauded by some reviewers, who appreciated its energy, while other reviewers were more critical, dubbing it an "advertisement song". The music video also received critical acclaim, especially for the parodies it contained. Despite the reviews, the single charted poorly, reaching number 42 on the ARIA Singles Chart.

The song was written by the band's lead singer, Bernard Fanning, following a night he spent drinking with bassist John Collins towards the end of the recording phase of Dream Days at the Hotel Existence. The song was written by Fanning on guitar, but he later wrote the main riff on piano, which was then converted into a lead guitar riff performed by Ian Haug. The guitars for the song are all tuned down one step; while the guitar finger positioning is played as though in the key of C major, the detuning brings the key of the song down to Bb, with the song leading off with Bb's relative minor, G minor. During the recording phase, Fanning suggested "softening" the main riff by returning it to the piano, and even recorded this concept; however this piano version did not end up in the final album mix, nor was it included as a B-side on the single.

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