Siu
UnisexSiu has been given to 18 babies in the U.S. since 1981. It peaked in 1982.
Popularity over time births per year, 1880–2025
Total babies
18
Peak year
1982 (8 babies)
Rank in 2025
Below top 1000
First recorded
1981
10-year trend
New / returning
Gender split
72% girls / 28% boys
Spellings & variants
Names one letter away from Siu — alternate spellings parents actually use.
Names with a similar vibe
Same primary gender, peaked around the same years, and roughly as common as Siu.
Sibling name ideas for Siu
Same era and popularity as Siu, avoiding matching initials or rhymes.
FAQ
How popular is the name Siu?
Siu has been given to 18 babies in the U.S. since 1981. It ranked below the top 1000 in 2025.
When did the name Siu peak?
Siu peaked in 1982, when 8 babies were given the name.
Is Siu a girl or boy name?
Siu is a unisex name, used for both girls and boys.
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