Meaning and history
Cailin is a variant of Kaylyn and also matches the Irish word cailín, meaning “girl.”
20062006: 132 births, rank #1,615
2007: 137 births, rank #1,621
2008: 137 births, rank #1,642
2009: 115 births, rank #1,848
2010: 133 births, rank #1,621
20112011: 100 births, rank #1,968
2012: 81 births, rank #2,315
2013: 65 births, rank #2,681
2014: 60 births, rank #2,843
2015: 50 births, rank #3,254
20162016: 24 births, rank #5,445
2017: 29 births, rank #4,695
2018: 33 births, rank #4,237
2019: 29 births, rank #4,653
2020: 42 births, rank #3,546
20212021: 20 births, rank #5,955
2022: 26 births, rank #5,028
2023: 11 births, rank #8,989
2024: 14 births, rank #7,594
20252025: 7 births, rank #11,932
In 2025, 7 babies were recorded with the name Cailin, ranking #11,932 among girls.