An anime series inspired by the ↗Clamp created manga series by the ↗same name.
- 2006 xxxHOLiC (TV: 24 ep)
- 2006 xxxHOLiC - Manatsu no Yoru no Yume (OVA: stand-alone title)
- 2008 xxxHOLiC Kei (TV: 12 ep, 2nd Season)
- 2009 xxxHOLiC Shunmuki (2ep manga OVA)
- 2010 xxxHOLiC Rou (single ep manga OVA)