Siobhan
Girl name · #2082 in 2025 · Uniqueness 57/100
Siobhan ranks #2082 among American girls' names as of 2025, with 90 newborns given the name that year. A decade ago it stood at #3024, so the name has been rising over the past ten years. Roughly one in every 20,000 girls born in 2025 was named Siobhan.
The 69-year story
Siobhan first appears in the Social Security records in 1956, when 58 girls received the name. Its peak came in 1980, when 282 girls were named Siobhan — good for #646 that year. Today's parents encounter it as a name from their grandparents’ generation, which is precisely the vintage window from which names get revived. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Siobhan per year, 1880–2025. Source: SSA.
Unlock the 5-year forecast and compare Siobhan against up to 5 other names.
Uniqueness: will there be another Siobhan in class?
Siobhan scores 57 out of 100 on our uniqueness scale, which blends current rarity with five-year momentum — putting it in the "distinctive" band. That middle band is the sweet spot many parents hunt for: recognizable without being everywhere.
Where Siobhan is most common
Geography matters for names, and Siobhan is no exception. In 2025 the states with the most Siobhans were NY (8), TX (8), CA (7), IL (7), PA (6). Raw counts naturally favor populous states, but the spread still hints at where the name is part of the local naming culture.
Names like Siobhan
Statistically, parents drawn to Siobhan tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Meghan, Adrian, Kristen, Jillian, and Jacklyn.
MeghanAdrianKristenJillianJacklynKatrinaSuzannaSusannah
Rank history (last 25 years)
| Year | Babies named Siobhan | Rank |
|---|---|---|
| 2025 | 90 | #2076 |
| 2024 | 103 | #1925 |
| 2023 | 102 | #1934 |
| 2022 | 84 | #2228 |
| 2021 | 100 | #1955 |
| 2020 | 64 | #2631 |
| 2019 | 47 | #3337 |
| 2018 | 44 | #3497 |
| 2017 | 33 | #4304 |
| 2016 | 52 | #3139 |
| 2015 | 56 | #3024 |
| 2014 | 54 | #3080 |
| 2013 | 69 | #2568 |
| 2012 | 64 | #2734 |
| 2011 | 52 | #3173 |
| 2010 | 77 | #2427 |
| 2009 | 62 | #2826 |
| 2008 | 50 | #3316 |
| 2007 | 57 | #3047 |
| 2006 | 61 | #2850 |
| 2005 | 64 | #2636 |
| 2004 | 71 | #2396 |
| 2003 | 108 | #1743 |
| 2002 | 91 | #1934 |
| 2001 | 86 | #1978 |
Frequently asked questions
Is Siobhan a popular girl name?
Siobhan ranked #2082 among girls in 2025 with 90 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #3024.
When was the name Siobhan most popular?
Siobhan peaked in 1980, when 282 American girls received the name (ranked #646 that year). Since 1980 the name has declined from that high.
How rare is the name Siobhan?
In 2025, roughly 1 in 20,000 newborn American girls was named Siobhan. It scores 57/100 on our uniqueness scale (rarity blended with momentum), which we classify as "distinctive".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.