Horse head tattoos are one of the more common tattoo types, partly due to the affection that many people have for horses (teenage girls in particular) and partly due to the qualities that are associated with horses. In particular, horses are considered to represent strength, freedom, loyalty, sexual virility and good luck.
Common formats for horse head tattoos include head only, full body, outline and abstract. The recent increased interest in things celtic has also resulted in celtic style designs, a variety of which can be found online for horses. Somewhat less common is to see multiple horses (such as mother and foal). One can also find designs that include famous people, including religious icons such as Saint George slaying a dragon while mounted.