The triple spiral or triskele is a Celtic and pre-Celtic symbol found on a number of Irish Megalithic and Neolithic sites, most notably inside the Newgrange passage tomb, on the entrance stone, and on some of the curbstones surrounding the mound.

Believed by many to be an ancient symbol of pre-Celtic and Celtic beliefs, the triple spiral appears in various forms in pre-Celtic and Celtic art, with the earliest examples having been carved on pre-Celtic stone monuments, and later examples found in the Celtic Christian illuminated manuscripts of Insular art. The triple spiral was possibly the precursor to the later triskele design found in the manuscripts.