Swallow could refer to any of at least six artists.

1) Swallow are a duo of instrumentalist Mike Mason and vocalist Louise Trehy, whose music juggled elements of My Bloody Valentine, the Cocteau Twins and Curve. They released Blow, as well as Blowback, a 4AD 'Temporary Release' featuring largely instrumental remixes in 1992. They returned in 2009 with the album Soft.
http://www.myspace.com/swallow4ad

2) Another band called Swallow is a four piece all girl punk outfit from Blackpool in the United Kingdom, formed in 2005.

3) Also, there was a band active in the late-80's Seattle grunge scene known as Swallow, appearing on the SUB POP 200 compilation.

4) Rupert "Swallow" Philo is a musician from Antigua & Barbuda who won the local Road March competition five times in the '70s and '80s: in 1972 for "Pow Pow"; in 1973 for "Push Ya, Push Dy"; in 1975 for "Shake and Break You Bam Bam"; then, after nearly a decade, again in 1983 for "Party in Space"; and in 1984 for "Satan".

5) Swallow (스왈로우) is Solo project band that 이기용 Lee Ki Yong (leader as well as the brain of Huckleberry Finn) has organized in 2003.
Lee Ki Yong is highly appraised from executives of the music industry as one of the best Singer songwriters in Korea. He had a chance to make the music of minimal funk rock come true by chance when waiting for Huckleberry Finn’s third album. As a government organization, Korea Culture Contents National Editorial Association supports the production of the Indie Rock music and Lee Ki Yong was selected. He went into production right away and after six months, presented the album ‘Sun Insane’. This album was widely supported by critics, manias and fans with great appraisal.
Lee Ki Yong wanted to present a more personal and private music than the music of Huckleberry Finn in ‘Sun Insane’.
This album has its characteristic, which shows a very lyrical sense with melancholy feel in overall. Lyrics mainly talking about personal depression and alienation were presented only through Elec guitar and vocal, Guitar and Violin and sometimes in just piano and vocal. Through these reductions in the use of instruments maximizes the sadness and private sense of the music.

Discography:
Sun Insane (2004)
Aresco (2005)
It (2009)

6) Janne "Swallow" Laitinen, a Finnish tracker artist known in the demoscene.
Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.
Artist biography from last.fm