Originating from Irish roots, the given name Gannon is derived from the surname Ó Géanna, which means 'descendant of Géannán'. Géannán itself is believed to mean 'little beard' or 'beardlet', likely referring to a person with facial hair that was short or patchy. This name gained popularity during the 19th and early 20th centuries in Ireland before becoming more widely recognized globally.
"Gannon is a unique name, with five children born with this name each year from 2015 onwards."