Kiley

Kiley as a masculine name represents an interesting gender crossover from what has become predominantly feminine usage in recent decades. Originally an Irish surname derived from 'Caollaidhe' meaning 'slender' or 'narrow,' Kiley emerged as a given name for both genders. While it has trended strongly female since the 1980s, it maintains a presence as a boy's name in some communities, reflecting the ongoing tradition of Irish surnames as male first names. For boys, Kiley carries a modern, dynamic quality while maintaining Celtic roots. The pronunciation is straightforward (KY-lee), making it accessible across cultures. As a masculine name, Kiley offers a distinctive option that balances traditional origins with contemporary sound.

As of October 2026, Kiley ranked #13318 in US births in 2016 SSA, peaked at #911 in 1971.