Joslyn vs Kailyn
Kailyn leads today (#1,818 vs #2,719), though both are past their peak.
145 years, head to head
Babies named Joslyn and Kailyn per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#2,719
#1,818
Babies named in 2025
63
110
Peak year
2010
2011
Trend
Declining since 2011
Declining since 2010
Usually for
Girls
Girls
Lifetime births
11,227
14,211
Try another matchup
Joslyn against names whose popularity has moved like its own.