Dillon

Dillon is an English given name with two plausible origins. It may derive from the Irish surname Ó Duilleáin, itself of uncertain Gaelic roots, or it may be a transferred use of the English and French surname Dillon, brought to Ireland by the Norman family de Leon. The name gained widespread use as a given name largely through the popularity of the surname, a common pattern in English-speaking countries. Variant spellings include Dylan, though that name has a distinct Welsh origin of its own.