How Common is the First Name Kailyn?
We estimate that there are 14,218 people named Kailyn who are currently alive and were born in the United States. Kailyn is the 1,141st most common for women, and the 1,969th most common overall.
How Old are People Named Kailyn?
The average person named Kailyn is 17.86 years old.
Is Kailyn a Popular Baby Name Right Now?
118 people named Kailyn were born in the U.S. in 2025. It was the 1,818th most popular name for girls, and the 3,160th most popular overall.
The popularity of Kailyn peaked in 2011, when it was the 397th most popular name for baby girls.
Is Kailyn a Boy's Name or a Girl's Name?
Kailyn is almost exclusively a female name. 99.0% of people named Kailyn are female.