Family
- father Paul Barton: British
- sister Hania Barton: Born c. 1988
- sister Zoe Barton: Born c. 1978
- mother Nuala Barton: Irish
Companions
- Companion Cisco Adler: Singer of the L.A. rock outfit Whitestarr; began dating in August 2005; split in January 2007 after nude photos of him appeared on the Internet
- Companion Taylor Locke: Lead singer of the band Rooney; briefly dated in 2008
- Companion Brandon Davis: Grandson of billionaire Hollywood mogul Marvin Davis; together from 2004-2005
- Companion Luke Pritchard: Lead singer of the band The Kooks; briefly dated in 2009
