Kolby
Recorded for both sexesGen Z2025 rank
#1,225
up +40 places
2025 births
165
up +9 births
All-time births
11,650
1% of them in 2025
More common than
98%
of all archived spellings recorded for boys, by lifetime births for that sex
- Peak year
- 2001
- 739 births
- Best rank
- #359
- in 2001
- First recorded
- 1968
- #4,454 that year
- Last recorded
- 2025
- still in the data
- Average birth year
- 2004
- weighted by recorded births
- Years recorded
- 56 of 146
- with gaps
Top five years
- 2001739#359Peak
- 2002676#385
- 2003543#464
- 2004497#493
- 1999407#521
Rank over time
Inverted scale — nearer the top is more popular. Unrecorded years are left blank, not drawn as zero.
Best rank #359 in 2001 · peak births 739 in 2001
Boys and girls
Births per year for each sex, on one shared scale. The girls' series is dashed.
● 90% boys■ 10% girls
11,650 boys · 1,351 girls, all time
Births by decade
Where the name's whole run sits, with the best and worst rank it held in each decade
Trajectory by decade
Where Kolby has ranked, decade by decade
The band spans each decade's best and worst rank; the line follows its best.