Siobhan
Siobhan was the 2096th most popular name for girls in 2025, given to 90 babies. Its best year was 1979, when it ranked 629th; the most babies were born in 1980 (282). Over the last ten years it has moved up 959 places. More babies were named Siobhan in the 1980s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #2,096 girls, up 560 places since 2020
- Babies in 2025
- 90girls
- Girls and boys
- Almost always a girl’s name2021–2025
- Peak year
- 1980282 babies
- Total since 1880
- 7,399babies recorded
Siobhan popularity since 1880
| Year | Rank (girls) | Babies (girls) |
|---|---|---|
| 2025 | #2,096 | 90 |
| 2020 | #2,656 | 64 |
| 2010 | #2,449 | 77 |
| 2000 | #1,646 | 108 |
| 1990 | #1,183 | 145 |
| 1980 | #649 | 282 |
| 1970 | #1,303 | 83 |
| 1960 | #1,154 | 90 |
| 1950 | — | — |
| 1940 | — | — |
| 1930 | — | — |
| 1920 | — | — |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Siobhan, counting every spelling?
Siobhan has no other common spelling that sounds the same.
How many kids will share the name Siobhan?
90 of the 3,606,400 babies born in the US in 2025 were named Siobhan (0.03 per 1,000 births). For a girl named Siobhan born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 93 (of 430 pupils) would have a child named Siobhan.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Siobhan?
About 7,100 people born in the US named Siobhan are alive today, with a median age of 39; half are between 26 and 47. That makes Siobhan mostly worn by adults in their thirties to fifties.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Siobhan by state
How common Siobhan was among girls born in each state in 2021–2025. It is notably more common than nationally in Massachusetts (2.8×), New York (2.0×), Pennsylvania (1.7×). In 37 states fewer than five girls a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Siobhan: their share of US girls followed the most similar curve since 1880. If you like Siobhan, they share its era and feel.
Questions about the name Siobhan
How popular is the name Siobhan?
Siobhan was the 2096th most popular name for girls in 2025, given to 90 babies. Its best year was 1979, when it ranked 629th; the most babies were born in 1980 (282). Over the last ten years it has moved up 959 places. More babies were named Siobhan in the 1980s than in any other decade.
Is Siobhan a boy or girl name?
In 2021–2025, almost always a girl’s name given the name Siobhan in the US.
Where is Siobhan most popular?
In 2021–2025, Siobhan was most common in Massachusetts (0.17 per 1,000 girls), followed by New York and Virginia.