Kennley is an uncommon given name of English origin, derived from the surname Kennedy. The name Kennedy is believed to have originated as a diminutive of Kenneth, which means "handsome" or "enriched with youth." However, Kennley can also be considered a variant spelling of Kenley, which is derived from the English place name Kenleigh, meaning "settlement on a bank by a river bend." The use of Kennley as a given name appears to have started in the mid-20th century. It has since gained some popularity but remains relatively rare.
"Kennley saw its peak popularity with 17 births in 2012 and has since maintained a steady average of around 10 births annually, with notable drops to as low as 5 in recent years."