Katlyn is a girl's name of Irish origin meaning “Pure, clear; from Greek "katharos" meaning pure or clean.” With 2 syllables, it is short and easy to say. Common nicknames include Kat, Katie, Kate. As of 2026, Katlyn ranks #927 among girls' names in the United States and has held a steady level of popularity. Its highest US ranking was #214 in 1995.
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KAT-lin
Phonetic spelling
Currently #927 among US baby names.
* Based on US Social Security Administration birth-registration data
Katlyn means “Pure, clear; from Greek "katharos" meaning pure or clean.” It is a girl's name of Irish origin.
Katlyn is pronounced KAT-lin.
Katlyn is most commonly used as a girl's name.
Katlyn currently ranks #927 among girls' names in the United States.
Popular nicknames for Katlyn include Kat, Katie, Kate.
Middle names that pair well with Katlyn include Katlyn Rose, Katlyn Grace, Katlyn Marie, Katlyn Jane.
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