"Boris the Spider" is a song written by the Who's bass guitarist, John Entwistle. It appears as the second track of their 1966 album A Quick One. This song is claimed to be Entwistle's first composition, and became a staple of live shows. This song, along with "My Wife", "Heaven and Hell" and "The Quiet One", were Entwistle's most popular songs to perform live. "The Quiet One" was written to replace this song and "My Wife", which Entwistle had become quite tired of singing. Though this song was popular, it was not released as a single in the US and the UK. In Japan, "Boris the Spider" was released as the B-side to "Whiskey Man" in 1967.