"The Diamond Sea" is a song by Sonic Youth, released as the first single from their 1995 album Washing Machine. The song has also been covered by Yeah Yeah Yeahs and can be found on their iTunes Session EP.
The radio edit of this song is significantly shorter than the version that appears on the album (which is 19:35), but the alternate version is over six minutes longer than the album version. The extra time is in the noisy coda near the end of the song. The 25-minute version was made available on the CD single for "The Diamond Sea", on the vinyl LP version of Washing Machine, and, in 2006, the compilation The Destroyed Room.