Synthia
Feminine · “of Mount Cynthus”
This spelling looks like a syn- word and is not one. Synthesis, synthetic, synchronize, syndrome, symphony and sympathy all begin with the Greek syn-, meaning together. Cynthia does not: it begins with a hill on a Greek island, and the letter has been swapped for the look of it.
How old is the name Synthia?
Synthia first appears in US birth records in 1890 — 135 years ago. The typical Synthia alive today was born around 1975, making them about 50 years old. About 2,200 people named Synthia are estimated to be alive in the US today.
When was the name Synthia most popular?
Synthia peaked in 1890, reaching #1210 nationally. Today it ranks #11932, 10,722 places below that high. See the whole 1890 chart.
Lists built from the same records:
Where it comes from
From Kynthos to Synthia
The story of Synthia
Syn- is one of the busiest Greek prefixes in English and it always means together: a synthesis puts things together, a symphony sounds together, a synonym names together, a syndrome runs together, and sympathy feels together — the m and the l in symphony and syllable are the same prefix assimilating to the letter after it. Any English word beginning syn-, sym- or syl- can be assumed Greek. Cynthia belongs to a different word entirely, and the epithet behind it is geographic rather than descriptive: Artemis of the hill, matched by Apollo Cynthius, her twin. The respelling gains a Greek prefix and loses a Greek hill.
Meaning
of Mount Cynthus
From Greek Kynthia, an epithet of Artemis meaning the woman of Cynthus, the hill on Delos where she and her brother were said to have been born. The name says where she came from. The initial S in this spelling is an American respelling and points at a Greek prefix that is not in the word.
How the name formed
- Kynthos
- Kynthia
- Cynthia
- Synthia
Related forms: Cintia · Cinzia
Pronouncing Synthia
SIN-thee-uh
Three syllables, stress on the first. Cynthia and Synthia are said identically; the C and the S are the same sound before a y.
Nicknames for Synthia
Moderate
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1890
- Most girls named
- 196567 — the highest on record
- Peak rank
- #1210reached in 1890
- Change vs 2023
- 0.0%7 in 2025, from 7
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Synthia in other languages
The same name elsewhere
- Cintia in Spanish — same name
- Cinzia in Italian — same name
Strongest US states over the last decade: New York.
Synthias among us
people named Synthia are estimated to be alive in the US today
About 1 girl in 229,610 born in 2025 was named Synthia
Estimated from SSA birth records and published actuarial life tables. Method
Spellings of Synthia
- #11932
- Synthia on the 2025 chart
- #688
- counting every spelling
The SSA counts spellings, not names. Synthia went to 7 girls in 2025, but Cynthia, Cinthia and Cinthya are the same name said out loud. Together the 4 spellings went to 279, which makes it the 688th most-given girls’ name of the year — 11,244 places above the chart.
About 1 girl in 5,761 born in 2025 was given one of these spellings — against 1 in 229,610 for Synthia itself.
Spellings are grouped by a fixed rule that folds interchangeable English spellings of one sound (ck/k, ph/f, x/ks, a non-initial y for i) and keeps vowels apart, so Sean and Shawn stay separate names. It errs towards splitting: a family here is never larger than the truth. SSA national data, 2025. Method
Is it right for you
What happens to a name after it peaks
Fashion outlook
Synthia sits in the calm middle of the cycle — neither chasing a wave nor sliding off one. Middle-of-the-cycle names age slowly and predictably.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Synthia beside its neighbors
The names ranked closest to Synthia in 2025, in babies rather than position — the bars are to scale.
US girls given each name in 2025.
The trade-off
- A settled Greek origin naming a real hill that is still on Delos.
- Three short forms, one of which is a full name in its own right.
- Three syllables with a firm opening stress.
- Cynthia is the standard spelling and this one will be corrected for life.
- The first syllable is a homophone of sin, which the C spelling conceals and this one does not.
- It is strongly represented among older generations and places the name in the last century.
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Synthia
Feminine · #11932 in the U.S.
Frequently asked
- How many Synthias are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 2,200 people named Synthia are estimated to be alive in the US today.
- How do you spell Synthia?
- Synthia is one of 4 recorded spellings. Cynthia is the more common one — 247 births in 2025 against 7 for Synthia.
- How popular is the name Synthia in 2025?
- Synthia ranks #11932 among US girl names in 2025, with 7 babies given the name.
- How rare is the name Synthia?
- About 1 in every 229,610 US girls born in 2025 was named Synthia — 7 in all.
- Will my child share the name Synthia with classmates?
- Synthia will almost certainly be the only one in school.
Ranked beside Synthia
Names sitting at a similar level of popularity right now.
Vina#11932 · Retta#11932 · Missouri#11932 · Iola#11932 · Eddie#11932 · Thomas#11932 · Louetta#11932 · Elvina#11932
Looking for what else is popular rather than what resembles Synthia? See the current top 100.
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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