Duncan
Recorded for both sexesMillennial2025 rank
#1,124
down −20 places
2025 births
190
down −5 births
All-time births
21,219
1% of them in 2025
More common than
98%
of all archived spellings recorded for boys, by lifetime births for that sex
- Peak year
- 1997
- 644 births
- Best rank
- #378
- in 1997
- First recorded
- 1880
- #540 that year
- Last recorded
- 2025
- still in the data
- Average birth year
- 1983
- weighted by recorded births
- Years recorded
- 145 of 146
- with gaps
Top five years
- 1997644#378Peak
- 1998641#386
- 1999576#410
- 2000530#447
- 1996505#444
Rank over time
Inverted scale — nearer the top is more popular. Unrecorded years are left blank, not drawn as zero.
Best rank #378 in 1997 · peak births 644 in 1997
Boys and girls
Births per year for each sex, on one shared scale. The girls' series is dashed.
● 100% boys■ 0% girls
21,219 boys · 11 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 Duncan has ranked, decade by decade
The band spans each decade's best and worst rank; the line follows its best.