Siobhan
Siobhan was given to 90 girls in 2025, #2,096 among girls’ names; 7,399 Americans have been recorded with it since 1956 (Social Security Administration, published May 2026).
An estimated 7,080 Americans named Siobhan and born in the U.S. are alive in 2026 (96% of everyone recorded); the median is 39 years old and half are between 26 and 47.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Siobhan by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Siobhan mean?
Wiktionary, English section
Siobhan is “a female given name from Irish.” Its etymology gives the sense “God is gracious” (literally).
Anglicized spelling of Irish Siobhán, from Middle Irish Sibán, from Anglo-Norman Jehane or Jehanne, from Old French Jehanne, from Medieval Latin Johanna, variant of Joanna, from Koine Greek Ἰωάννα (Iōánna), from Hebrew יוֹחָנָה (Yôḥānāh, literally “God is gracious”), the feminized form of יְהוֹחָנָן (Yəhōḥānān) or יוֹחָנָן (Yōḥānān), which produced John and its many doublets. Doublet of Ivana, Jana, Jane, Janice, Janis, Jean, Jeanne, Jen, Joan, Joanna, Joanne, Johanna, Juana, Shavonne, Sian, Shane, Shaun, Shauna, and Sheena.
/ʃəˈvɔːn/
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Siobhan?
#2,096 among girls’ names, 2025
Siobhan rose from #3,055 in 2015 to #2,096 in 2025 among girls’ names; its share of girls born rose from 31.4 to 56.0 per million.
282 babies in 1980, the peak
Siobhan peaked in 1980, when 282 girls were given it, #649 among girls’ names. The 90 births of 2025 are 32% of that peak.
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2025 | 90 | #2,096 | 0.06 |
| 2024 | 103 | #1,939 | 0.06 |
| 2023 | 102 | #1,943 | 0.06 |
| 2022 | 84 | #2,248 | 0.05 |
| 2021 | 100 | #1,967 | 0.06 |
| 2020 | 64 | #2,656 | 0.04 |
| 2019 | 47 | #3,376 | 0.03 |
| 2018 | 44 | #3,552 | 0.03 |
| 2017 | 33 | #4,365 | 0.02 |
| 2016 | 52 | #3,179 | 0.03 |
Every recorded year (70)
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2015 | 56 | #3,055 | 0.03 |
| 2014 | 54 | #3,105 | 0.03 |
| 2013 | 69 | #2,592 | 0.04 |
| 2012 | 64 | #2,766 | 0.04 |
| 2011 | 52 | #3,216 | 0.03 |
| 2010 | 77 | #2,449 | 0.04 |
| 2009 | 62 | #2,848 | 0.03 |
| 2008 | 50 | #3,370 | 0.03 |
| 2007 | 57 | #3,090 | 0.03 |
| 2006 | 61 | #2,884 | 0.03 |
| 2005 | 64 | #2,664 | 0.03 |
| 2004 | 71 | #2,418 | 0.04 |
| 2003 | 108 | #1,753 | 0.06 |
| 2002 | 91 | #1,951 | 0.05 |
| 2001 | 86 | #1,989 | 0.05 |
| 2000 | 108 | #1,643 | 0.06 |
| 1999 | 107 | #1,577 | 0.06 |
| 1998 | 119 | #1,440 | 0.07 |
| 1997 | 139 | #1,270 | 0.08 |
| 1996 | 138 | #1,266 | 0.08 |
| 1995 | 119 | #1,386 | 0.07 |
| 1994 | 113 | #1,420 | 0.06 |
| 1993 | 133 | #1,280 | 0.07 |
| 1992 | 159 | #1,121 | 0.09 |
| 1991 | 162 | #1,109 | 0.09 |
| 1990 | 145 | #1,179 | 0.08 |
| 1989 | 169 | #1,014 | 0.09 |
| 1988 | 155 | #1,040 | 0.09 |
| 1987 | 183 | #912 | 0.11 |
| 1986 | 192 | #864 | 0.11 |
| 1985 | 234 | #740 | 0.14 |
| 1984 | 226 | #727 | 0.13 |
| 1983 | 203 | #786 | 0.12 |
| 1982 | 228 | #740 | 0.13 |
| 1981 | 214 | #764 | 0.13 |
| 1980 | 282 | #649 | 0.17 |
| 1979 | 277 | #629 | 0.17 |
| 1978 | 118 | #1,111 | 0.08 |
| 1977 | 77 | #1,447 | 0.05 |
| 1976 | 68 | #1,521 | 0.05 |
| 1975 | 58 | #1,671 | 0.04 |
| 1974 | 65 | #1,517 | 0.04 |
| 1973 | 73 | #1,369 | 0.05 |
| 1972 | 75 | #1,349 | 0.05 |
| 1971 | 102 | #1,146 | 0.06 |
| 1970 | 83 | #1,303 | 0.05 |
| 1969 | 82 | #1,241 | 0.05 |
| 1968 | 82 | #1,208 | 0.05 |
| 1967 | 86 | #1,145 | 0.05 |
| 1966 | 104 | #1,015 | 0.06 |
| 1965 | 97 | #1,067 | 0.05 |
| 1964 | 78 | #1,252 | 0.04 |
| 1963 | 77 | #1,260 | 0.04 |
| 1962 | 75 | #1,282 | 0.04 |
| 1961 | 98 | #1,115 | 0.05 |
| 1960 | 90 | #1,153 | 0.04 |
| 1959 | 86 | #1,155 | 0.04 |
| 1958 | 54 | #1,461 | 0.03 |
| 1957 | 67 | #1,299 | 0.03 |
| 1956 | 58 | #1,375 | 0.03 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Siobhan a boy’s or a girl’s name?
Siobhan has been recorded only for girls: SSA lists no boys with the name in 70 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Siobhan: the SSA national file counts each sex separately.
How many people are named Siobhan, and how old are they?
7,080 alive in 2026, estimated
That is 96% of the 7,399 Americans ever recorded as Siobhan. The median Siobhan alive today is 39 years old; half are between 26 and 47.
The 2020 Census counted 7,208 people named Siobhan (7,189 women and girls, 19 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 6,639 born in the U.S. The Census count is 9% above that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Baby Boomers | 1946-1964 | 576 |
| Generation X | 1965-1980 | 1,610 |
| Millennials | 1981-1996 | 2,690 |
| Generation Z | 1997-2012 | 1,300 |
| Generation Alpha | 2013-2025 | 893 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Siobhan born?
The states with the most babies named Siobhan are New York, Massachusetts and California, with 63% of its births recorded by state since 1910; Massachusetts is not among the ten states with the most births.
| State | Since 1910 | Rank, girls | vs. national |
|---|---|---|---|
| New York | 1,481 | #1,639 | 2.8× |
| Massachusetts | 809 | not ranked | 4.4× |
| California | 793 | #2,732 | 0.9× |
| New Jersey | 387 | not ranked | 1.8× |
| Pennsylvania | 355 | #1,376 | 1.0× |
| Illinois | 296 | #1,222 | 0.8× |
| Texas | 167 | #2,598 | 0.3× |
| Florida | 121 | not ranked | 0.4× |
| Connecticut | 120 | not ranked | 1.3× |
| Ohio | 82 | not ranked | 0.2× |
Where Siobhan is more common than its national share predicts
Relative to its national share, Siobhan is most over-represented in Massachusetts: since 1956 it was given 4.4 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Siobhan with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 6 names spelled alike, given to 14,933 babies since 1880, Siobhan is the most given (50% of them). In 2025 it was given to 90 of their 90 babies (100%), again the most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Siobhan
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Siobhan and names like it
- Compare Siobhan and ShavonBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1980sSiobhan peaked in 1980.
- New York’s most given namesThe state where SSA recorded the most babies named Siobhan since 1910.
- Irish namesWiktionary’s origin for Siobhan: every such name, by how often it is given.
- The top names of 1980The year the most babies were named Siobhan.
- The names of the MillennialsMost people named Siobhan alive today were born 1981-1996.
- Names starting with SMost given first.