Synthia
A rare (non-standard) spelling of Cynthia.
Every Synthia since 1890 — 2,428 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Synthia
Synthia is rare for girls in the United States, ranked #13,047 in 2025 with 7 babies given the name. It is currently declining compared with a decade ago.
Since 1890, 2,428 American babies have been named Synthia. Its peak came in 1965, when 67 newborns received the name — the signature sound of the 1960s.
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 Synthia stood among all girls' names in any year, or use the compare tool to plot it against other names.
Synthia year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Girls | Girls rank |
|---|---|---|
| 2025 | 7 | #13,047 |
| 2024 | 9 | #11,013 |
| 2023 | 7 | #13,310 |
| 2022 | 6 | #15,114 |
| 2021 | 10 | #10,220 |
| 2020 | 5 | #17,253 |
| 2019 | 11 | #9,670 |
| 2018 | 14 | #8,116 |
| 2017 | 11 | #9,867 |
| 2016 | 15 | #7,940 |
| 2015 | 8 | #12,888 |
| 2014 | 11 | #10,074 |
| 2013 | 16 | #7,710 |
| 2012 | 18 | #7,111 |
| 2011 | 17 | #7,392 |
| 2010 | 22 | #6,164 |
| 2009 | 23 | #6,070 |
| 2008 | 23 | #6,118 |
| 2007 | 19 | #7,063 |
| 2006 | 19 | #6,806 |
| 2005 | 35 | #4,109 |
| 2004 | 17 | #7,047 |
| 2003 | 23 | #5,399 |
| 2002 | 31 | #4,168 |
| 2001 | 28 | #4,433 |
| 2000 | 30 | #4,174 |
| 1995 | 40 | #2,970 |
| 1990 | 50 | #2,459 |
| 1985 | 26 | #3,402 |
| 1980 | 30 | #2,990 |
| 1975 | 22 | #3,245 |
| 1970 | 46 | #1,902 |
| 1965 | 67 | #1,347 |
| 1960 | 56 | #1,485 |
| 1955 | 41 | #1,614 |
| 1950 | 18 | #2,422 |
| 1945 | 9 | #3,360 |
| 1940 | — | — |
| 1935 | — | — |
| 1930 | 5 | #5,170 |
| 1925 | — | — |
| 1920 | — | — |
| 1915 | — | — |
| 1910 | — | — |
| 1905 | — | — |
| 1900 | — | — |
| 1895 | — | — |
| 1890 | 6 | #1,325 |
| 1885 | — | — |
| 1880 | — | — |
Frequently asked questions
What does the name Synthia mean?
A rare (non-standard) spelling of Cynthia.
How popular is the name Synthia in 2025?
Synthia ranked #13,047 among girls' names in the United States in 2025, with 7 babies given the name, according to Social Security Administration data.
How many people are named Synthia?
2,428 babies have been named Synthia in the United States since 1890, based on Social Security card applications.
When was the name Synthia most popular?
Synthia peaked in 1965, when 67 newborns received the name.
Is Synthia a boy or girl name?
Synthia is overwhelmingly a girl's name — 100% of babies with the name.
Is the name Synthia rising or falling?
Synthia is declining — less popular now than a decade ago.