Keelan is an uncommon given name of Irish origin, derived from the Irish surname Ó Cioláin. It was traditionally used as a male name but can also be used for females. The name's meaning is believed to be "descendant of Ciolan," with Ciolan being an ancient Irish personal name. Keelan is not typically associated with any specific saint or religious figure, and thus does not have a widely celebrated name day.
"Keelan has seen varied popularity over the years, with a notable spike from 2000 to 2008, and again in recent years like 2019 and 2021."