Reiko vs Reinaldo
American parents have registered 3,941 Reinaldos since 1880, against 690 Reikos. Reinaldo is still ahead, with 14 babies in 2025.
Babies given each name, 1880–2025
Reiko Reinaldo
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 108 years in which either name was published, Reinaldo for 92 years and Reiko for 16 years. The lead changed hands 12 times.
- 1912–1925 Reinaldo ahead
- 1926–1939 Reiko ahead, apart from one short spell
- 1946–2025 Reinaldo ahead, apart from one short spell
8 shorter spells of a year or two are folded into the spans above rather than listed separately.
Side by side
| Reiko | Reinaldo | |
|---|---|---|
| Total US births | 690 | 3,941 |
| Most in one year | 29 | 88 |
| Babies in 2025 | under 5 | 14 |
| Estimated living today | 540 | 3,400 |
| Median age today | 42 | 43 |
| Peak year | 1975 | 1963 |
| Best rank | 3,052nd girls | 807th boys |
| Rank in 2025 | unranked | 6,143rd |
| First recorded | 1921 | 1912 |
| Girls / boys | 671 / 19 | 0 / 3,941 |
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
- Reiko California (9.4×)
- Reinaldo New York (6.7×), Florida (5.1×), New Jersey (4.4×)
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: Reiko and Reinaldo.