Save Type Surname (from given name) Usage Irish Pronounced Pron. KEHN-ə-dee [key·IPA] Expand LinksMeaning & History From the Irish name Ó Cinnéidigh meaning "descendant of CENNÉTIG". This surname was borne by assassinated American president John F. Kennedy (1917-1963). DetailsRelated Names VariantÓ CinnéidighGiven Name DescendantKennedy(Irish) Categories American presidential surnames Entry updated November 16, 2019 ·