Arnoldo vs Arnulfo
American parents have registered 6,316 Arnulfos since 1880, against 4,713 Arnoldos. Arnulfo is still ahead, with 29 babies in 2025.
Babies given each name, 1880–2025
Arnoldo Arnulfo
Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.
Who was ahead
Of the 114 years in which either name was published, Arnulfo for 102 years and Arnoldo for 12 years. The lead changed hands 20 times.
- 1915–2019 Arnulfo ahead, apart from 5 short spells
15 shorter spells of a year or two are folded into the spans above rather than listed separately.
Side by side
| Arnoldo | Arnulfo | |
|---|---|---|
| Total US births | 4,713 | 6,316 |
| Most in one year | 94 | 119 |
| Babies in 2025 | 26 | 29 |
| Estimated living today | 3,900 | 4,900 |
| Median age today | 38 | 39 |
| Peak year | 1992 | 1992 |
| Best rank | 1,135th boys | 987th boys |
| Rank in 2025 | 4,050th | 3,757th |
| First recorded | 1914 | 1909 |
| Girls / boys | 0 / 4,713 | 0 / 6,316 |
A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.
Where each one is strongest
- Arnoldo Texas (9.3×), California (2.4×), Arizona (2.2×)
- Arnulfo Texas (8.4×), California (3.0×), Arizona (1.9×)
How much commoner the name is in that state than it is nationally, from births recorded since 1910.
Compare something else
Related comparisons
Social Security Administration birth records, 1880–2025, public domain. Full histories: Arnoldo and Arnulfo.