Theo vs Arlo
Theo leads today (#82 vs #148), and both are climbing.
145 years, head to head
Babies named Theo and Arlo per year in U.S. Social Security records, 1880–2025.
Head to head
2025 rank
#82
#148
Babies named in 2025
3,945
2,443
Peak year
2023
2024
Trend
Rising since 1994
Rising since 1993
Usually for
Boys
Boys
Lifetime births
35,830
24,245
Try another matchup
Theo against names whose popularity has moved like its own.