Sian: Name Popularity, History & Rankings (1880

Rank 2025

#16,925

among girls · ↓4,917 vs 2024

Babies in 2025

named Sian

How common

1 in 321,453

girls born in 2025

Peak year

2002

36 babies

All-time total

1,030

#8,345 all-time among girls

First recorded

1962

in Social Security records

Sian popularity over time

1,030 babies have been named Sian since 1962, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure

Births per 1,000 babies of that sex, comparable across eras

GirlsBoys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade	Girls	Boys	Total	Per year	Change	Best rank
1880s	–	–	–	–	–	–
1890s	–	–	–	–	–	–
1900s	–	–	–	–	–	–
1910s	–	–	–	–	–	–
1920s	–	–	–	–	–	–
1930s	–	–	–	–	–	–
1940s	–	–	–	–	–	–
1950s	–	–	–	–	–	–
1960s	73	–	73	7	–	#3,383
1970s	127	–	127	13	+74%	#2,675
1980s	99	–	99	10	-22%	#5,778
1990s	144	12	156	16	+58%	#4,223
2000s	250	27	277	28	+78%	#4,252
2010s	112	48	160	16	-42%	#6,308
2020s (to 2025)	53	85	138	23	+44%	#7,522

The story of Sian

Sian is rare for girls in the United States, ranked #16,925 in 2025 with 5 babies given the name. It is currently declining compared with a decade ago.

Since 1962, 1,030 American babies have been named Sian, about 83% girls and 17% boys, making it a genuinely unisex name. Its peak came in 2002, when 36 newborns received the name, the signature sound of the 2000s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Sian stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Sian?

The median living Sian is about 23 years old; half are between 13 and 38. An estimated 1,000 people named Sian are alive in the United States today.

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Sian year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year	Girls	Girls rank	Boys	Boys rank
2025	5	#16,925	26	#4,123
2024	8	#12,008	9	#8,883
2023	6	#14,931	13	#6,843
2022	12	#8,977	11	#7,687
2021	7	#13,288	14	#6,298
2020	15	#7,522	12	#6,983
2019	13	#8,540	8	#9,616
2018	8	#12,330	8	#9,536
2017	12	#9,273	7	#10,602
2016	11	#10,020	9	#8,705
2015	12	#9,413	–	–
2014	11	#10,061	5	#13,763
2013	11	#10,154	–	–
2012	7	#14,768	5	#13,918
2011	21	#6,308	–	–
2010	6	#16,691	6	#11,981
2009	18	#7,303	–	–
2008	29	#5,123	7	#10,859
2007	23	#6,057	6	#12,141
2006	35	#4,252	–	–
2005	29	#4,687	–	–
2004	24	#5,359	–	–
2003	23	#5,392	–	–
2002	28	#4,487	8	#8,330
2001	25	#4,818	–	–
2000	16	#6,763	6	#10,168
1995	11	#8,010	6	#8,729
1990	12	#7,246	–	–
1985	11	#6,404	–	–
1980	10	#6,711	–	–
1975	17	#3,920	–	–
1970	7	#6,959	–	–
1965	13	#3,712	–	–
1960	–	–	–	–
1955	–	–	–	–
1950	–	–	–	–
1945	–	–	–	–
1940	–	–	–	–
1935	–	–	–	–
1930	–	–	–	–
1925	–	–	–	–
1920	–	–	–	–
1915	–	–	–	–
1910	–	–	–	–
1905	–	–	–	–
1900	–	–	–	–
1895	–	–	–	–
1890	–	–	–	–
1885	–	–	–	–
1880	–	–	–	–

Frequently asked questions

Quick answers about Sian, drawn from the same Social Security data as the charts above.

How old is the average Sian?

The median living Sian is about 23 years old. Half of all living Sians are between 13 and 38 years old.

How many people named Sian are alive today?

An estimated 1,000 people named Sian are alive in the United States, based on 1,030 recorded births and Social Security life tables.

What does the name Sian mean?

An anglicization of Welsh Siân, ultimately from Latin Joanna, from Koine Greek Ἰωάννα (Iōánna), from Hebrew יוֹחָנָה (Yôḥānāh, literally “God is gracious”), the feminized form of יְהוֹחָנָן (Yəhōḥānān) which produced John and its…

How popular is the name Sian in 2025?

Sian ranked #16,925 among girls' names in the United States in 2025, with 5 babies given the name, according to Social Security Administration data.

How many people are named Sian?

1,030 babies have been named Sian in the United States since 1962, based on Social Security card applications.

When was the name Sian most popular?

Sian peaked in 2002, when 36 newborns received the name.

Is Sian a boy or girl name?

Sian is used for both: about 83% of babies named Sian have been girls and 17% boys.

Is the name Sian rising or falling?

Sian is declining, less popular now than a decade ago.

Names like Sian

Names that sound and feel close to Sian: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Sian with similar names → More names starting with S →