"Earth Intruders" is a song written and recorded by Icelandic singer Björk. The song was released as the first single from her 2007 full-length studio album, Volta.

The single was released digitally in the USA on 9 April and 21 April 2007 and in Europe on 28 April 2007. The single was released in a physical box set on 4 February 2008. Due to high digital download sales, it remains Björk's highest charting single in the United States to date.

The first mention of "Earth Intruders" as a song title was made on All Access on March 10, 2007, and was later confirmed as the lead single through an article by The Guardian on March 11, 2007. On March 26, 2007, a distorted sample of the song was uploaded to YouTube as part of the viral marketing campaign for the Volta album. A fifteen-second sample of the track then appeared on the Rhino Records online ringtone website on April 1, 2007. The purchased ringtone featured a different clip (with different lyrics) to the one used in the online preview on the site; both audio samples were subsequently spread across music forums. On April 3, 2007 it was reported that the Björk section of the Rhino Records online ringtone store had been removed. After internet radio station WOXY played the song on April 6, 2007 the song was made widely available across file-sharing networks.

The album version of Earth Intruders was leaked to the internet on April 24, 2007 due to the full album being made available accidentally on the UK iTunes Store on April 23, 2007 for a total of six hours, two weeks before the album's official release date. Björk said of the song was based on a dream during a cross-Atlantic flight to New York where;

"Earth Intruders" is co-produced by R&B record producer Timbaland and his protégé Danja. Congolese group Konono Nº1 play electric likembes on the song.

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