Keane is of Irish origin, derived from the surname 'Ó Cianáin', which translates to 'descendant of Cían'. It was originally a Gaelic personal name, Cían, meaning 'ancient, enduring'. Keane is often associated with places in Ireland such as County Kerry and County Mayo. In English-speaking countries, it has been used as both a given name and surname.
The name Keane experienced significant popularity fluctuations over the past century, with a notable spike from the late 1970s to the mid-1980s, reaching its peak with 35 births in 1994 and maintaining a relatively high level of popularity until around 2010. Since then, it has seen a steady decline, with only 14 births recorded in 2023. Overall, Keane was born to 1460 children between 1950 and 2023.