Holding steady, #2,941 for boys today.
Popularity of Sion since 1912
Babies named Sion per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1910s | 0 | 5 |
| 1920s | 0 | 10 |
| 1930s | 0 | 0 |
| 1940s | 0 | 5 |
| 1950s | 0 | 0 |
| 1960s | 0 | 0 |
| 1970s | 0 | 41 |
| 1980s | 0 | 24 |
| 1990s | 7 | 56 |
| 2000s | 54 | 187 |
| 2010s | 14 | 241 |
| 2020s | 10 | 229 |
Meaning & origin
Sion is a distinctive Welsh name with ambiguous origins. It first appeared in U.S. records in 1912, though it has never been common. In 2025, it ranked 2,941st nationally, with a frequency of about 1 in every 40,668 male births. The name saw its highest popularity in 2023, when it ranked 2,691st, and its trajectory has remained relatively stable over the past decade. Geographically, Sion is most common in Georgia and New York. While its etymology is debated, the name carries a strong Welsh identity and remains a rare but steady choice for parents seeking a unique name with Celtic roots.
The name Sion is of Welsh origin, possibly derived from the Welsh word 'sionc' meaning 'nimble' or 'lively'. Alternatively, it may be a variant of Zion, the biblical place name, though that connection is debated. In Wales, it has been used as a given name since at least the early 20th century.
Where Sion is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
Sibling names for Sion
Names that share Sion's style, for a brother or sister.
