Kailyn vs Kaylee
Kaylee leads today (#255 vs #1,818), though both are past their peak.
145 years, head to head
Babies named Kailyn and Kaylee per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#1,818
#255
Babies named in 2025
110
1,205
Peak year
2011
2009
Trend
Declining since 2010
Declining since 2010
Usually for
Girls
Girls
Lifetime births
14,211
140,425
Try another matchup
Kailyn against names whose popularity has moved like its own.