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