Illiam vs Illian
Side-by-side comparison of Illiam and Illian - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Illiam | Illian |
| Current Rank | Unranked | #8949 |
| Total Births (all years) | 42 | 25 |
| Peak Year | 1981 | 2025 |
| Peak Year Births | 8 | 11 |
| Peak Decade | 1980s | 2020s |
| Gender | Boy | Boy |
| First Recorded Year | 1975 | 2022 |
Births by Decade
| Decade | Illiam | Illian |
| 1970s | 5 | - |
| 1980s | 37 | - |
| 2020s | - | 25 |
Recent Annual Births (2014–present)
| Year | Illiam | Illian |
| 2022 | - | 5 |
| 2024 | - | 9 |
| 2025 | - | 11 |