"Charlie bit my finger - again !", more simply known as "Charlie Bit My Finger" or "Charlie Bit Me", was a 2007 internet viral video famous for being at the time the most viewed YouTube video. As of October 2022, the video received over 897 million views. In May 2021, the video was sold as an NFT at auction for over $700,000. On 24 May, the video was set to Unlisted.

The 56-second-long video, which was uploaded on YouTube in May 2007, features Harry Davies-Carr (aged 3) and Charlie Davies-Carr (aged 1), two brothers from the United Kingdom. Both seated in a chair, Harry puts his finger into Charlie's mouth and gets bitten. He says "Charlie bit me", before putting his finger back into Charlie's mouth, upon which it gets bitten harder. Harry says "ouch" repeatedly, and his brother begins to giggle. Afterwards, Harry smiles and repeats "Charlie bit me. And that really hurt."

On 23 July 2021, the video was set to "Private" due to a change in YouTube policy that automatically marked private all "unlisted" videos dated 31 December 2016 or earlier. YouTube announced the change on 23 June 2021 as a 30-day warning before the change took effect.

The Charlie Bit Me "Official Remix" and "Working With Harry and Charlie" NFTs were auctioned off in May 2021.