Compare two names
Yi and Yu side by side: Yi peaked in 2018 and Yu in 2007; in 2025 they were given to 24 and 9 babies.
Yi and Yu, year by year
Girls and boys together; Yi solid, Yu dashed.
| Yi | Yu | |
|---|---|---|
| Births 2025 | 24 | 9 |
| Rank 2025 | #6,431 among boys’ names | #8,888 among boys’ names |
| Recorded since 1880 | 486 | 830 |
| Peak year | 2018 | 2007 |
| Girls | 37% | 46% |
| Alive, estimated | 479 | 810 |
| Median age | 12 | 25 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.