Kiernan meaning, boyKiernan

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Meaning and name origin

Kiernan \ki(er)-nan\ as a boy's name is of Irish and Gaelic origin, and the meaning of Kiernan is "black". Kiernan is a variant of Kieran (Irish, Gaelic): name of a saint (sixth century) who was admired for his generosity. A birth name for boys which is seldom used.


Kiernan has 1 variant form: Kernan.


Kiernan is not a popular first name for males but a very popular surname or last name for all people (#8048 out of 88799, Top 9%) (Source: 2000 U.S. Population Census).

Displayed below is a comparison of the popularity of the boy name Kiernan and its variant forms. The only popular variation form ranked in the Top 1000/100 is Kieran (#576). (Source: 2014 Birth Name Statistics).

Top 1000 baby names ranking of Kieran in U.S.

Top 100 baby names ranking of Kieran outside U.S.

Similar Names

Suggested similar baby names are Kienan and Tiernan. Like Kiernan, these names are not commonly used.