Sian
Gender-neutral name · Celtic · Hebrew · Irish · Welsh
MeaningGod is gracious · Welsh form of Jane
- US rank
- #4,050
- Syllables
- 1
- Peak
- #4,050 in 2025
26 babies were named Sian in the US in 2025. It has climbed 2,570 places in five years.
Found on lists
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US births per million girls, 1962–2025
US births per million boys, 1995–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Sian you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 65,789 baby boys born in the US in 2025 was named Sian, 26 babies in all. In a typical school of 500 kids, your Sian would very likely be the only one.
- HistorySian first shows up in US birth records in 1962, the first year at least 5 babies got it. It has been in use for 63 years since.
- Best yearSian is at its all-time high right now: #4,050 in 2025.
- Then vs nowSian is 4.9× more common today than it was in 2000. In 2000 it was given to about 1 in 322,581 baby boys; in 2025, about 1 in 65,789.
- TrendSian has climbed 2,570 places in the US rankings over the last five years and now sits at #4,050. Fast risers like this often keep climbing, so expect to hear it more.
- Boy or girlSian is given to both boys and girls: 84% of the 31 babies named Sian in 2025 were boys. That makes it one of the names that truly works for either.
- MeaningSian is a Welsh form of Jane, which means “God is gracious”. Our records link it to Celtic, Hebrew and Irish roots.
About the name Sian
Sian is a gender-neutral name of Celtic, Hebrew and Irish origin meaning “God is gracious”. It has 4 letters and 1 syllable, starting with S and ending in “-ian”. US birth records list Sian for boys from 1995 to 2025, in 19 of those 31 years. Its best year was 2025, when it ranked #4,050 among boy names. In 2025 it ranked #4,050, with 26 babies. Of the 31 US babies named Sian in 2025, 16% were girls and 84% were boys.
Origin:Celtic namesHebrew namesIrish namesWelsh names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1960s | 5.2 | 191,847 girls |
| 1970s | 8.5 | 118,343 girls |
| 1980s | 5.7 | 174,216 girls |
| 1990s | 8.0 | 124,378 girls |
| 2000s | 14 | 73,964 girls |
| 2010s | 6.4 | 156,006 girls |
| 2020s | 5.4 | 184,049 girls |
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1990s | 1.3 | 793,651 boys |
| 2000s | 1.4 | 740,741 boys |
| 2010s | 2.6 | 389,105 boys |
| 2020s | 8.2 | 121,704 boys |
More Celtic names
- Girl name: Evelyn · possibly desired
- Girl name: Isla · from Islay
- Unisex name: Owen · well-born
- Unisex name: Riley · rye clearing
- Unisex name: Logan · little hollow
- Unisex name: Rowan · little red-haired one
- Unisex name: Nolan · descendant of Nuallán
- Unisex name: Cameron · crooked nose
Questions about the name Sian
What does the name Sian mean?
Sian means “God is gracious” in Welsh, as a form of Jane.
What is the origin of the name Sian?
Sian has Celtic, Hebrew, Irish, Welsh roots in our records. Other Celtic names include Evelyn, Isla, Owen.
Is Sian a boy or girl name?
Both. Sian is used for boys and girls: in 2025, 16% of US babies named Sian were girls.
How popular is the name Sian?
Sian ranked #4,050 for US boys in 2025, given to 26 babies. Its best year was 2025 (#4,050).