Kennedy
Meaning
from Irish surname Ó Cinnéidigh and the byname Cennétig, possibly "armoured head" or "misshapen head"
The story
Kennedy moved from an Irish family name onto birth certificates. The surname is an Anglicized form of Ó Cinnéidigh, descendant of Cennétig. That older byname is less flattering and more uncertain than the familiar helmeted chief gloss: its elements may refer to an armoured head or to a misshapen head. In the United States, some families have chosen Kennedy in honor of President John F. Kennedy, while television host Lisa Kennedy Montgomery helped make the surname especially visible as a girl's name in the 1990s. The local curve begins its real climb in that decade, rises through the 2000s, reaches its highest band in the 2010s, and remains strong in the 2020s. No single bearer explains every choice. Kennedy's modern life comes from several layers meeting at once: Irish ancestry, an American political surname, and the wider rise of gender-flexible family names as given names.
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Kennedy peaked in the 2010s.
See popularity in Brazil
Popularity in Brazil
12,629 people · the #1,451 first name in Brazil · about 1 in 16,129 · median age 21
Among people named Kennedy living in Brazil at the 2022 census, more were born in the 1990s than in any other decade.
The census also counted 774 born between 2020 and August 2022, too recent a span to chart.
Source: IBGE, Censo Demográfico 2022
When you meet Kennedy
Most people given the name Kennedy in the United States are children or teenagers today. The name belongs to this generation.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Kennedy deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Kennedy truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Kennedy fits with your family’s names and surname.
Keep exploring
Does Kennedy fit YOUR family?
nametree reads your family’s names and finds the ones that belong. Free, private, no ads.
Add Kennedy to your family’s tree →