How Many People Are Named Sian?
people named Sian are alive in the United States today (estimate)
About 1 in 340,423 people in the US has this name
Based on 1,030 babies named Sian in Social Security records from 1962 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
36 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Welsh form of JEANNE.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
⚧ Gender Distribution
Of the babies given the name Sian, 83% were girls and 17% were boys. The share of girls among babies named Sian fell from 100% in the 1970s to 38.4% in the 2020s.
👥 Age Distribution
The average person named Sian alive today is about 26 years old, and 65% are under 30. Half of them were between 12 and 38 in 2025.
📈 Popularity Over Time
Sian first appears in the records in 1962 and was given most often in 2002, to 36 babies. In 2025, 31 babies got the name.
Babies given the name each year, 1962 to 2025
🏆 Rank History
Sian has never been one of the 100 most popular girls' names. Its best rank was #2,675, in 1974. In 2025 it ranked #16,920. Among boys, its best rank was #4,122, in 2025.
| Girls | Boys | |
|---|---|---|
| Rank in 2025 | #16,920 | #4,122 |
| Best rank | #2,675 (1974) | #4,122 (2025) |
| Years in the top 100 | None | None |
| Rank in its biggest decade | #5,211 in the 2000s | #6,181 in the 2020s |
📍 State-Wise Distribution
People named Sian alive today, by the state where they were born (estimate; state records start in 1910).
More people named Sian were born in California than in any other state: about 40 of those alive today.
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