What Katlyn means
Katlyn is a variant of Caitlin.
Meaning behind the documented name family
The name developed through Katlyn → Caitlin → Catherine. The family’s proposed meaning is “each of the two”, recorded in English with the source elements hekáteros.
Related names and everyday forms
Related names include Caitlin.
American usage and historical context
In the United States, 18,433 girls were recorded with the name Katlyn between 1979 and 2025. Its highest annual count was 1,260 in 1995; its best national rank was #223 in 1995.
Over 5 years its rank rose, from #9,232 in 2020 to #8,610 in 2025. Over 10 years its rank fell, from #3,277 in 2015 to #8,610 in 2025.
In the United States, 5 boys were recorded with the name Katlyn between 1989 and 1989. Its highest annual count was 5 in 1989; its best national rank was #8,564 in 1989.
Sources & methodologyReferences, data & attribution
Meaning, origin, and language notes draw on the references below.
American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.
- Wiktionary: Catherine (English)
- Wiktionary: Catherine
- U.S. Social Security Administration: national name data and limitations
- Wikidata: Katlyn Chookagian
Wiktionary material is available under CC BY-SA 4.0.