Siobhan
Recorded for girlsMillennial2025 rank
#2,096
down −157 places
2025 births
90
down −13 births
All-time births
7,399
1% of them in 2025
More common than
97%
of all archived spellings recorded for girls, by lifetime births for that sex
- Peak year
- 1980
- 282 births
- Best rank
- #629
- in 1979
- First recorded
- 1956
- #1,376 that year
- Last recorded
- 2025
- still in the data
- Average birth year
- 1989
- weighted by recorded births
- Years recorded
- 70 of 146
- unbroken
Top five years
- 1980282#649Peak
- 1979277#629
- 1985234#740
- 1982228#740
- 1984226#727
Rank over time
Inverted scale — nearer the top is more popular. Unrecorded years are left blank, not drawn as zero.
Best rank #629 in 1979 · peak births 282 in 1980
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 Siobhan has ranked, decade by decade
The band spans each decade's best and worst rank; the line follows its best.
The boys' series
No boys have been recorded with this name.
Stated, not plotted as zero — the split bar and the unisex badge are omitted rather than drawn empty.