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Girl name

Siobhan

Siobhan holds the #2076 spot on the 2025 list of the most popular girl names in the U.S. That amounts to 90 newborn girls in a single year. The name is on the way up, moving from #2631 in 2020 to #2076 today. Its strongest year on record was 1979 (#628 nationally, 277 newborns), in a data series reaching back to 1956. The name's biggest fan base is in Washington (#1046 there in 2025).

Rankings

2025 rank
#2076
among girl names
Trend
Rising
last 5 years
All-time peak
#628
in 1979 (1970s)
Babies in 2025
90
girls named Siobhan

Siobhan popularity, 1880–2025

0.005%0.009%0.014%0.019%18801900192019401960198020002020#628 in 1979
Girls — share of U.S. female birthsSource: SSA, 1880–2025◆ peak 1979

Where Siobhan is most popular

Alaska: fewer than 5 girls named Siobhan in 2025AK—Maine: fewer than 5 girls named Siobhan in 2025ME—Vermont: fewer than 5 girls named Siobhan in 2025VT—New Hampshire: fewer than 5 girls named Siobhan in 2025NH—Washington: #1046 (5 girls, 0.02% of girls born 2025)WA#1046Idaho: fewer than 5 girls named Siobhan in 2025ID—Montana: fewer than 5 girls named Siobhan in 2025MT—North Dakota: fewer than 5 girls named Siobhan in 2025ND—Minnesota: fewer than 5 girls named Siobhan in 2025MN—Wisconsin: fewer than 5 girls named Siobhan in 2025WI—Michigan: fewer than 5 girls named Siobhan in 2025MI—New York: #1526 (8 girls, 0.01% of girls born 2025)NY#1526Massachusetts: fewer than 5 girls named Siobhan in 2025MA—Rhode Island: fewer than 5 girls named Siobhan in 2025RI—Oregon: fewer than 5 girls named Siobhan in 2025OR—Nevada: fewer than 5 girls named Siobhan in 2025NV—Wyoming: fewer than 5 girls named Siobhan in 2025WY—South Dakota: fewer than 5 girls named Siobhan in 2025SD—Iowa: fewer than 5 girls named Siobhan in 2025IA—Illinois: #1113 (7 girls, 0.02% of girls born 2025)IL#1113Indiana: fewer than 5 girls named Siobhan in 2025IN—Ohio: fewer than 5 girls named Siobhan in 2025OH—Pennsylvania: #1231 (6 girls, 0.01% of girls born 2025)PA#1231New Jersey: fewer than 5 girls named Siobhan in 2025NJ—Connecticut: fewer than 5 girls named Siobhan in 2025CT—California: #2487 (7 girls, 0.00% of girls born 2025)CA#2487Utah: fewer than 5 girls named Siobhan in 2025UT—Colorado: fewer than 5 girls named Siobhan in 2025CO—Nebraska: fewer than 5 girls named Siobhan in 2025NE—Missouri: fewer than 5 girls named Siobhan in 2025MO—Kentucky: fewer than 5 girls named Siobhan in 2025KY—West Virginia: fewer than 5 girls named Siobhan in 2025WV—Virginia: #1180 (5 girls, 0.01% of girls born 2025)VA#1180Maryland: fewer than 5 girls named Siobhan in 2025MD—Delaware: fewer than 5 girls named Siobhan in 2025DE—Arizona: fewer than 5 girls named Siobhan in 2025AZ—New Mexico: fewer than 5 girls named Siobhan in 2025NM—Kansas: fewer than 5 girls named Siobhan in 2025KS—Arkansas: fewer than 5 girls named Siobhan in 2025AR—Tennessee: fewer than 5 girls named Siobhan in 2025TN—North Carolina: fewer than 5 girls named Siobhan in 2025NC—South Carolina: fewer than 5 girls named Siobhan in 2025SC—District of Columbia: fewer than 5 girls named Siobhan in 2025DC—Oklahoma: fewer than 5 girls named Siobhan in 2025OK—Louisiana: fewer than 5 girls named Siobhan in 2025LA—Mississippi: fewer than 5 girls named Siobhan in 2025MS—Alabama: fewer than 5 girls named Siobhan in 2025AL—Georgia: fewer than 5 girls named Siobhan in 2025GA—Hawaii: fewer than 5 girls named Siobhan in 2025HI—Texas: #2386 (8 girls, 0.01% of girls born 2025)TX#2386Florida: fewer than 5 girls named Siobhan in 2025FL—
Share of girls born in 2025:lowhighno data (< 5 births)
Strongest states: Washington (#1046), Illinois (#1113), Virginia (#1180)

Uniqueness score

64/ 100Uncommon
everywhereone of a kind

Distinctive without being unheard of. Based on how many babies per birth were named Siobhan in the most recent year of SSA data.

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