Siobhan Girl
How popular is Siobhan?
#2,076 girl name in 2025
90 baby girls were named Siobhan in the US in 2025, making it the 2076th most popular girl name.
7,127living people named Siobhan (est.)
39median age of people named Siobhan
7,399babies named Siobhan since 1880
1 in 36,837US babies born in 2025
Siobhan popularity over time
| Rank in 2025 | #2,076 for girls (▼ 151 from 2024) |
|---|---|
| Babies in 2025 | 90 girls |
| 10-year trend | Rising fast (+61% babies vs 2015) |
| Earlier ranks | #3,024 in 2015, #2,631 in 2020 |
| Peak year | 1980 (282 girls) |
| Highest rank | #628 in 1979 |
| First recorded | 1956 |
| Boys vs girls (last 10 years) | 0% boys, 100% girls |
| Chance a classmate shares it | 0.1% in a class of 25 kids born in 2025 |
Where Siobhan is most popular
Babies named Siobhan per 1,000 girls born in each state, 2021 to 2025. Darker means more common.
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- Massachusetts: 0.2 per 1,000 (20 girls)
- New York: 0.1 per 1,000 (46 girls)
- Virginia: 0.1 per 1,000 (18 girls)
- Pennsylvania: 0.1 per 1,000 (24 girls)
- Washington: 0.1 per 1,000 (10 girls)
Siobhan by decade
| Decade | Baby girls | Best rank |
|---|---|---|
| 1950s | 265 | #1,148 |
| 1960s | 869 | #1,011 |
| 1970s | 996 | #628 |
| 1980s | 2,086 | #646 |
| 1990s | 1,334 | #1,103 |
| 2000s | 758 | #1,630 |
| 2010s | 548 | #2,427 |
| 2020s | 543 | #1,925 |
Girl names about as popular as Siobhan
Questions
- Is Siobhan a boy or girl name?
- Siobhan is mostly a girl name. Over the last 10 years, 100% of babies named Siobhan were girls.
- How popular is the name Siobhan?
- 90 baby girls were named Siobhan in the US in 2025, making it the 2076th most popular girl name.
- When was Siobhan most popular?
- Siobhan peaked in 1980, when 282 girls were given the name. Its highest rank was #628 in 1979.
- How many people are named Siobhan?
- 7,399 babies have been named Siobhan in the US since 1880. We estimate about 7,127 of them are alive in 2026, with a median age of 39.
- Where is Siobhan most popular?
- From 2021 to 2025, Siobhan was most common in Massachusetts, at 0.2 of every 1,000 girls born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.