Girl Name · Greek Origin
Cynthia
Cynthia is a girl's name whose meaning is not firmly attested in the historical record. It is a girl's name of Greek origin, and in 2026 it sits in the Top 100 of US baby names.
Origin and meaning: English Wiktionary (CC BY-SA 4.0). Popularity: US Social Security Administration.
Parents drawn to Cynthia usually describe the same thing — it just feels settled. Etymologically, Cynthia traces back to a root meaning "Moon goddess", giving it a quiet narrative spine that meaningful names always carry. It comes out of the Greek naming tradition, where it accumulated centuries of literary and family use before crossing into broader English use. One thing the editorial team specifically noted about Cynthia is how naturally it sits across formal and casual contexts — resume to nickname.
Cynthia holds steady in the top 100 of US name rankings, which is to say it's a widely-loved mainstream favorite. Compared with names of similar style, Cynthia has held its rank more consistently — a quiet sign of long-term durability. The rhythm is easy — short on syllables but full on character — and it sits comfortably next to most family surnames. If Cinthia is already on your list, Cynthia belongs in the same conversation; the sections below dig into pronunciation, nicknames, and sibling fits.
Cynthia meaning, origin, and usage
Meaning: Cynthia has a distinctive sound and evolving modern usage.
Origin: Greek naming roots help connect Cynthia to related Greek baby names.
Pronunciation: Baby Name Studio pronounces Cynthia as C·Y·N·T·H·I·A, with 7 letters and a girl usage profile.
Popularity: According to Baby Name Studio's 2026 tracker, Cynthia is a widely-loved, instantly-recognizable pick in the Top 100 tier.
Cynthia variants, nicknames, middle names, and sibling names
- Variants and spelling ideas: Cynthiaa, Cynthiae, Cynthiay, Cynthi.
- Nicknames: Cynt and C.
- Middle names: Pair Cynthia with a middle name that balances its substantial sound; start with the Cynthia middle name generator.
- Sibling names: Cinthia, Cyndi, Cyndy, Cindy, Cindi — full picks on the sibling names for Cynthia guide for a cohesive sibset.
- Similar names: Looking for names that sound like Cynthia? Browse our names like Cynthia guide for phonetic-neighbor picks.
- Explore more: use the Baby Name Explorer, name search, AI name generator, and Baby Name Studio homepage.
Compare Cynthia side by side
Head-to-head breakdowns of meaning, popularity, pronunciation, and sibling fit.
Frequently asked about Cynthia
What does the name Cynthia mean?
Cynthia has no single meaning that is firmly attested in the historical record. It is used as a girl name in US birth records, and parents usually choose it for its sound rather than a documented meaning.
What is the origin of Cynthia?
Cynthia originates in Greek naming tradition.
How do you pronounce Cynthia?
Cynthia has 7 letters and is most commonly stressed on the first syllable.
Is Cynthia a boy's or girl's name?
Cynthia is primarily used as a girl's name in US records.
How popular is Cynthia in 2026?
In our 2026 popularity tracker, Cynthia sits in the Top 100 tier — a widely-loved, instantly-recognizable pick.
What names are similar to Cynthia?
Names that share Cynthia's sound and style include Cinthia, Cyndi, Cyndy, Cindy, Cindi.
What middle names pair well with Cynthia?
Good middle-name fits for Cynthia pair an opposite syllable rhythm: if Cynthia is short, lean longer (e.g. classical or three-syllable middles); if Cynthia is longer, a one-syllable middle keeps the full name from feeling heavy.
What are good sibling names for Cynthia?
Sibling names that pair naturally with Cynthia share its rhythm without rhyming — Cinthia, Cyndi, Cyndy all sit comfortably alongside it on a shortlist.