Compare two names
Kolbey and Colby side by side: Kolbey peaked in 2003 and Colby in 2001; in 2025 they were given to 6 and 515 babies.
Kolbey and Colby, year by year
Girls and boys together; Kolbey solid, Colby dashed.
| Kolbey | Colby | |
|---|---|---|
| Births 2025 | 6 | 515 |
| Rank 2025 | #11,417 among boys’ names | #615 among boys’ names |
| Recorded since 1880 | 265 | 58,155 |
| Peak year | 2003 | 2001 |
| Girls | 8% | 7% |
| Alive, estimated | 260 | 56,100 |
| Median age | 23 | 25 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.