Declan vs Nikolai
Declan leads today (#139 vs #605), but Nikolai is climbing faster.
145 years, head to head
Babies named Declan and Nikolai per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#139
#605
Babies named in 2025
2,570
469
Peak year
2019
2021
Trend
Declining since 2019
Rising since 1985
Usually for
Boys
Boys
Lifetime births
58,547
11,027
Try another matchup
Declan against names whose popularity has moved like its own.