Cillian vs Emma
Emma leads today (#3 vs #507), but Cillian is climbing faster.
145 years, head to head
Babies named Cillian and Emma per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#507 (boys)
#3 (girls)
Babies named in 2025
595
12,754
Peak year
2024
1881
Trend
Rising since 1997
Declining since 2013
Usually for
Boys
Girls
Lifetime births
4,084
776,439