Seaborn vs Seamus
American parents have registered 7,809 Seamuses since 1880, against 526 Seaborns. Seamus is still ahead, with 154 babies in 2025.
Babies given each name, 1880–2025
Seaborn Seamus
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 119 years in which either name was published, Seamus for 68 years and Seaborn for 51 years. The lead changed hands 3 times.
Side by side
| Seaborn | Seamus | |
|---|---|---|
| Total US births | 526 | 7,809 |
| Most in one year | 21 | 298 |
| Babies in 2025 | under 5 | 154 |
| Estimated living today | 120 | 7,600 |
| Median age today | 73 | 18 |
| Peak year | 1920 | 2008 |
| Best rank | 1,694th boys | 753rd boys |
| Rank in 2025 | unranked | 1,276th |
| First recorded | 1882 | 1957 |
| Girls / boys | 0 / 526 | 0 / 7,809 |
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.
Which name is older
Half of the Seaborns alive today are over 73; half the Seamuses are over 18. That is 55 years between them: two names in use at the same time, worn by two different generations.
Where each one is strongest
- Seaborn Georgia (34.1×)
- Seamus Massachusetts (5.9×), New Hampshire (3.1×), Connecticut (2.3×)
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: Seaborn and Seamus.