Kennedy

Kennedy is a unisex given name of Irish and English origin, derived from the Irish surname Ó Cinnéidigh, meaning "descendant of Cinnédidh" or "helmet-headed". The name is ultimately rooted in the personal name Cennétig, borne by the father of the legendary Irish High King Brian Boru. The Anglicized form emerged during the English colonization of Ireland, following the typical pattern of adapting Gaelic patronymics into English nomenclature.

Kennedy made its mark as a given name through two distinct cultural phenomena in the late 20th century. First, it was adopted in honor of President John F. Kennedy (1917–1963), the assassinated American leader of Irish descent, whose charisma and tragic death cemented his family's name in global consciousness. Second, it was popularized for girls by Lisa Kennedy Montgomery (born 1972), known mononymously as Kennedy, the MTV host of Alternative Nation from 1992 to 1997. Her androgynous first name and television presence helped normalize historically surname-derived given names for females.

Though originally an Irish surname belonging to two distinct families—one in Ireland (associated with the Ó Cinnéidigh clan) and one in Scotland (the Kennedy clan of Carrick, Ayrshire)—the name gained independence as a first name well before the Kennedy presidency, but its modern usage is inextricably tied to the political dynasty. It has seen particular popularity in the United States and other English-speaking countries, often for girls despite its historic masculine usage as a bearer name.