Mostyn vs Ostyn
Mostyn vs Ostyn: popularity history side-by-side from official U.S. Social Security birth records.
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Mostyn
| Total recorded births | 6 |
| Peak year | 2001 (#10127) |
| Years on the list | 1 |
| 10-year trend | — |
Ostyn
| Total recorded births | 30 |
| Peak year | 2023 (#8746) |
| Years on the list | 5 |
| 10-year trend | — |
Figures are from the U.S. Social Security Administration Popular Baby Names dataset (public domain). Names with fewer than 5 recorded births in a year or state are suppressed by the source.