Phi vs Phillis
American parents have registered 3,683 Phillises since 1880, against 519 Phis. Neither name reached five babies in 2025.
Babies given each name, 1880–2025
Phi Phillis
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 120 years in which either name was published, Phillis for 86 years and Phi for 34 years. The lead changed hands once.
Side by side
| Phi | Phillis | |
|---|---|---|
| Total US births | 519 | 3,683 |
| Most in one year | 26 | 118 |
| Babies in 2025 | under 5 | under 5 |
| Estimated living today | 500 | 2,000 |
| Median age today | 33 | 69 |
| Peak year | 1992 | 1949 |
| Best rank | 2,670th boys | 800th girls |
| Rank in 2025 | unranked | unranked |
| First recorded | 1976 | 1882 |
| Girls / boys | 45 / 474 | 3,677 / 6 |
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 Phillises alive today are over 69; half the Phis are over 33. That is 36 years between them: two names in use at the same time, worn by two different generations.
Where each one is strongest
- Phi California (7.4×), Texas (3.2×)
- Phillis Alabama (4.4×), Mississippi (4.1×), Missouri (3.5×)
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: Phi and Phillis.