Kiley as a Baby Name. Meaning and Origin of Kiley

What is the meaning of the name Kiley ?

The baby name Kiley is a Unisex name , 2 syllables long and is pronounced KY-lee or KEE-lee (IPA: /ˈkaɪli/ or /ˈkiːli/).

Kiley is Irish in Origin.

Kiley traces to two intertwined sources. As an Anglicized Irish surname (Ó Cadhla), it carries the sense “graceful, beautiful,” reflecting the meaning of the Gaelic personal name Cadhla. In parallel, it functions as a respelling of Kylie/Kylee, themselves modern feminines of Kyle, from Scottish Gaelic caol “narrow” or “strait.” While the often-cited Aboriginal “boomerang” etymology pertains to Kylie in Australia, it is not the usual root for Kiley.

Found as a family name in Munster - especially Waterford and Tipperary - Kiley/Kiely later crossed to North America, where Kiley rose as a given name in the late 20th century. Early usage was unisex, but it now skews feminine and saw a U.S. peak in the mid-2000s alongside the broader Kylie trend. Variant forms include Kylie, Kylee, Kyleigh, Kilee, and Kileigh; related surnames are Kiely, Keely, and Kealy. Cognates/relatives: Kyle (m.), Kyla (f.).