Kieran
Meaning
"little dark one"
The story
Kieran is the Irish Ciaran worn into English spelling, the little dark one, a name early Ireland gave its dark-haired sons and two of its best-loved saints. The American record is a patient build with no spike anywhere: double digits through the 1940s, a few hundred a decade through the 1970s, then 730, 2,500, 5,000, and 5,600 in the 2010s, with 4,000 so far this decade, closing on the full 2010s with years to run. It goes to boys about 17,600 to 1,600. The saints were an abbot and a bishop, the kind of famous that lasts fifteen centuries quietly, which suits the name: Kieran has never had a headline decade, only a record that ends higher than it began in nearly every generation the ledger holds.
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Kieran peaked in the 2020s.
See popularity in Brazil
Popularity in Brazil
28 people · the #99,072 first name in Brazil · median age 26
Source: IBGE, Censo Demográfico 2022
When you meet Kieran
Most people given the name Kieran 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 Kieran deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Kieran 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 Kieran fits with your family’s names and surname.
Where Kieran travels
Irish American · A classic heritage choice in Irish American families.
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