Isaias vs Kieran
Kieran leads today (#389 vs #426), and both are climbing.
145 years, head to head
Babies named Isaias and Kieran per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#426
#389
Babies named in 2025
755
817
Peak year
2025
2025
Trend
Rising since 1986
Rising since 1987
Usually for
Boys
Boys
Lifetime births
18,644
17,613
Try another matchup
Isaias against names whose popularity has moved like its own.